Hair & Nails

Silvery hair is characteristic of 3 rare autosomal-recessive disorders—Chédiak-Higashi syndrome (CHS), Elejalde syndrome (ES), and Griscelli syndrome (GS)—which are associated with mutations in various genes that encode several proteins involved in the intracellular processing and movement of melanosomes. We report the case of a 2-month-old male infant with transient silvery hair and generalized hypopigmentation of the skin and eyes who did not have any genetic mutations associated with the classic syndromes that usually are characterized by transient silvery hair.

Case Report

A 2-month-old male infant presented to the dermatology department for evaluation of silvery hair with generalized hypopigmentation of the skin and eyes (Figure 1) that had developed at 1 month of age. His parents were healthy, nonconsanguineous, and reported no family history of silvery hair. The patient was delivered by cesarean section at 35 weeks’ gestation. His medical history was remarkable for congenital hydrops fetalis with pleuropericardial effusion, ascites, soft-tissue edema, and hydrocele with no signs of any congenital infection. Both the patient and his mother were O Rh +.

Several studies were performed following delivery. A direct Coombs test was negative. Blood studies revealed hypothyroidism and hypoalbuminemia secondary to protein loss associated with fetal hydrops. Cerebral, abdominal, and renal ultrasound; echocardiogram; thoracic and abdominal computed tomography; and cerebral magnetic resonance imaging revealed no abnormalities.

Karyotype results showed 46,XY,add(2)(p23), and subsequent spectral karyotyping and fluorescence in situ hybridization tests identified a chromosomal abnormality (46,XY,add[2][p23].ish del[2][pter][2PTEL27‒], dup[4][qter][D4S2930++])(Figure 2). Parental karyotypes were normal.

After birth, the infant was admitted to the neonatal intensive care unit for 50 days and received pleural and peritoneal drainages, mechanical ventilation, vasoactive drugs, parenteral nutrition with resolution of the hypoalbuminemia, levothyroxine, and intravenous antibiotics for central venous catheter infection. No drugs known to be associated with hypopigmentation of the hair, skin, or eyes were administered.

Two weeks after discharge from the neonatal intensive care unit, the patient was referred to our department. Physical examination revealed silvery hair on the scalp, eyebrows, and eyelashes, along with generalized hypopigmentation of the skin and eyes. Abdominal, cardiovascular, respiratory, and neurologic examination revealed no abnormalities, and no hepatosplenomegaly, lymphadenopathy, nystagmus, or strabismus was noted.

Light microscopy of the hair revealed small and regular aggregates of melanin along the hair shaft, predominantly in the medulla (Figure 3). Light microscopy of a skin biopsy specimen showed normal pigmentation in the melanocytes and no giant melanosomes. The melanocyte count was within reference range. A peripheral blood smear showed no giant granules in the granulocytes. No treatment was administered and the patient was followed closely every month. When the patient returned for follow-up at 9 months of age, physical examination revealed brown hair on the head, eyebrows, and eyelashes, as well as normal pigmentation of the skin and eyes (Figure 4). Thyroid function was normal and no recurrent infections of any type were noted. At follow-up at the age of 4 years, he showed normal neurological and psychological development with brown hair, no recurrent infections, and normal thyroid function. Given that CHS, ES, and GS had been ruled out, the clinical presentation and the genetic mutation detected may indicate that this case represents a new entity characterized by transient silvery hair.

Comment

Silvery hair is a known feature of CHS, ES, and GS (Table). The characteristic hypopigmentation associated with these autosomal-recessive disorders is the result of impaired melanosome transport leading to failed transfer of melanin to keratinocytes. These disorders differ from oculocutaneous albinism in that melanin synthesis is unaffected.

Chédiak-Higashi syndrome is characterized by generalized hypopigmentation of the skin and eyes, silvery hair, neurologic and immune dysfunction, lymphoproliferative disorders, and large granules in granulocytes and other cell types.^1-3 A common complication of CHS is hemophagocytic lymphohistiocytosis, which is characterized by fever, jaundice, lymphadenopathy, hepatosplenomegaly, and pancytopenia.⁴ Pigmentary dilution of the irises also may be present, along with photophobia, strabismus, nystagmus, and impaired visual acuity. Chédiak-Higashi syndrome is the result of a genetic defect in the lysosomal trafficking regulator gene, also known as CHS1 (located on chromosome 1q42.1‒q42.2).⁵ Melanin in the hair shaft is distributed uniformly in multiple small aggregates. Light microscopy of the skin typically shows giant melanosomes in melanocytes and aberrant keratinocyte maturation.

Elejalde syndrome is characterized by silvery hair (eyelashes and eyebrows), neurologic defects, and normal immunologic function.^6,7 The underlying molecular basis remains unknown. It appears related to or allelic to GS type 1 and thus associated with mutations in MYO5A (myosin VA); however, the gene mutation responsible has yet to be defined.⁸ Light microscopy of the hair shaft usually shows an irregular distribution of large melanin aggregates, primarily in the medulla.^9,10 Skin biopsy generally shows irregular distribution and irregular size of melanin granules in the basal layer.¹¹ Leukocytes usually show no abnormal cytoplasmic granules. Ocular involvement is common and may present as nystagmus, diplopia, hypopigmented retinas, and/or papilledema.

In GS, hair microscopy generally reveals large aggregates of melanin pigment distributed irregularly along the hair shaft. Granulocytes typically show no giant granules. Light microscopy of the skin usually shows increased pigment in melanocytes with sparse pigment in keratinocytes. Griscelli syndrome is classified into 3 types.¹² In GS type 1, patients have silvery gray hair, light-colored skin, severe neurologic defects,¹³ and normal immune status. This variant is caused by a mutation in the MYO5A gene located on chromosome 15q21. In GS type 2, patients have silvery gray hair, pyogenic infections, an accelerated phase of hemophagocytic lymphohistiocytosis, and variable neurologic defects in the absence of primary neurologic disease.^14,15 This variant is caused by a mutation in the RAB27A (member RAS oncogene family) gene located on chromosome 15q21. In GS type 3, patients exhibit generalized hypopigmentation of the skin and hair with no abnormalities of the nervous or immune systems. There are 2 different mutations associated with GS type 3: the first is located on chromosome 2q37.3, causing a mutation in MLPH (melanophilin), and the second is caused by an F-exon deletion in the MYO5A gene.¹⁴

Our patient had silvery hair, generalized hypopigmentation of the skin and eyes, and normal central nervous system function with no other ocular involvement and no evidence of recurrent infections of any kind. Light microscopy showed small and regular melanin pigment aggregates in the hair shaft, which differs from the irregular pigment aggregates in GS and ES.

The regular melanin pigment aggregates observed along the hair shaft were consistent with CHS, but other manifestations of this syndrome were absent: ocular, neurologic, hematologic, and immunologic abnormalities with presence of giant intracytoplasmic granules in leukocytes, and giant melanosomes in melanocytes. In our patient, the absence of these features along with the spontaneous repigmentation of the silvery hair, improvement of thyroid function, reversal of hypoalbuminemia, and the chromosomopathy detected make a diagnosis of CHS highly improbable.

We concluded that the silvery hair noted in our patient resulted from the 46,XY,add(2)(p23) chromosomal abnormality. This mutation could affect some of the genes that control the trafficking of melanosomes or could induce hypothyroidism and hypoproteinemia associated with congenital hydrops fetalis (Figure 5).

Hydrops fetalis is a potentially fatal condition characterized by severe edema (swelling) in a fetus or neonate. There are 2 types of hydrops fetalis: immune and nonimmune. Immune hydrops fetalis may develop in an Rh+ fetus with an Rh– mother, as the mother’s immune cells begin to break down the red blood cells of the fetus, resulting in anemia in the fetus with subsequent fetal heart failure, leading to an accumulation of large amounts of fluid in the tissues and organs. Nonimmune hydrops fetalis can occur secondary to diseases that interfere with the fetus’s ability to manage fluid (eg, severe anemia; congenital infections; urinary, lymphatic, heart, or thoracic defects; inborn errors of metabolism; chromosomal abnormalities). Case studies have suggested that congenital hypothyroidism could be a cause of nonimmune hydrops fetalis.^16,17 Thyroid hormone deficiency reduces stimulation of adrenergic receptors in the lymphatic system and lungs, thereby decreasing lymph flow and protein efflux to the lymphatic system and decreasing clearance of liquid from the lungs. The final result is lymph vessel engorgement and subsequent leakage of lymphatic fluid to pleural spaces, causing hydrops fetalis and chylothorax.

The 46,XY,add(2)(p23) chromosomal abnormality has not been commonly associated with hypothyroidism and hydrops fetalis. The silvery hair in our patient was transient and spontaneously repigmented to brown over the course of follow-up in conjunction with improved physiologic changes. We concluded that the silvery hair in our patient was induced by his hypoproteinemic status secondary to hydrops fetalis and hypothyroidism.

Conclusion

In addition to CHS, ES, and GS, the differential diagnosis for silvery hair with abnormal skin pigmentation in children should include 46,XY,add(2)(p23) mutation, as was detected in our patient. Evaluation should include light microscopy of the hair shaft, skin biopsy, assessment of immune function, peripheral blood smear, and neurologic and eye examinations.

Silvery hair is characteristic of 3 rare autosomal-recessive disorders—Chédiak-Higashi syndrome (CHS), Elejalde syndrome (ES), and Griscelli syndrome (GS)—which are associated with mutations in various genes that encode several proteins involved in the intracellular processing and movement of melanosomes. We report the case of a 2-month-old male infant with transient silvery hair and generalized hypopigmentation of the skin and eyes who did not have any genetic mutations associated with the classic syndromes that usually are characterized by transient silvery hair.

Case Report

A 2-month-old male infant presented to the dermatology department for evaluation of silvery hair with generalized hypopigmentation of the skin and eyes (Figure 1) that had developed at 1 month of age. His parents were healthy, nonconsanguineous, and reported no family history of silvery hair. The patient was delivered by cesarean section at 35 weeks’ gestation. His medical history was remarkable for congenital hydrops fetalis with pleuropericardial effusion, ascites, soft-tissue edema, and hydrocele with no signs of any congenital infection. Both the patient and his mother were O Rh +.

Several studies were performed following delivery. A direct Coombs test was negative. Blood studies revealed hypothyroidism and hypoalbuminemia secondary to protein loss associated with fetal hydrops. Cerebral, abdominal, and renal ultrasound; echocardiogram; thoracic and abdominal computed tomography; and cerebral magnetic resonance imaging revealed no abnormalities.

Karyotype results showed 46,XY,add(2)(p23), and subsequent spectral karyotyping and fluorescence in situ hybridization tests identified a chromosomal abnormality (46,XY,add[2][p23].ish del[2][pter][2PTEL27‒], dup[4][qter][D4S2930++])(Figure 2). Parental karyotypes were normal.

After birth, the infant was admitted to the neonatal intensive care unit for 50 days and received pleural and peritoneal drainages, mechanical ventilation, vasoactive drugs, parenteral nutrition with resolution of the hypoalbuminemia, levothyroxine, and intravenous antibiotics for central venous catheter infection. No drugs known to be associated with hypopigmentation of the hair, skin, or eyes were administered.

Two weeks after discharge from the neonatal intensive care unit, the patient was referred to our department. Physical examination revealed silvery hair on the scalp, eyebrows, and eyelashes, along with generalized hypopigmentation of the skin and eyes. Abdominal, cardiovascular, respiratory, and neurologic examination revealed no abnormalities, and no hepatosplenomegaly, lymphadenopathy, nystagmus, or strabismus was noted.

Light microscopy of the hair revealed small and regular aggregates of melanin along the hair shaft, predominantly in the medulla (Figure 3). Light microscopy of a skin biopsy specimen showed normal pigmentation in the melanocytes and no giant melanosomes. The melanocyte count was within reference range. A peripheral blood smear showed no giant granules in the granulocytes. No treatment was administered and the patient was followed closely every month. When the patient returned for follow-up at 9 months of age, physical examination revealed brown hair on the head, eyebrows, and eyelashes, as well as normal pigmentation of the skin and eyes (Figure 4). Thyroid function was normal and no recurrent infections of any type were noted. At follow-up at the age of 4 years, he showed normal neurological and psychological development with brown hair, no recurrent infections, and normal thyroid function. Given that CHS, ES, and GS had been ruled out, the clinical presentation and the genetic mutation detected may indicate that this case represents a new entity characterized by transient silvery hair.

Comment

Silvery hair is a known feature of CHS, ES, and GS (Table). The characteristic hypopigmentation associated with these autosomal-recessive disorders is the result of impaired melanosome transport leading to failed transfer of melanin to keratinocytes. These disorders differ from oculocutaneous albinism in that melanin synthesis is unaffected.

Chédiak-Higashi syndrome is characterized by generalized hypopigmentation of the skin and eyes, silvery hair, neurologic and immune dysfunction, lymphoproliferative disorders, and large granules in granulocytes and other cell types.^1-3 A common complication of CHS is hemophagocytic lymphohistiocytosis, which is characterized by fever, jaundice, lymphadenopathy, hepatosplenomegaly, and pancytopenia.⁴ Pigmentary dilution of the irises also may be present, along with photophobia, strabismus, nystagmus, and impaired visual acuity. Chédiak-Higashi syndrome is the result of a genetic defect in the lysosomal trafficking regulator gene, also known as CHS1 (located on chromosome 1q42.1‒q42.2).⁵ Melanin in the hair shaft is distributed uniformly in multiple small aggregates. Light microscopy of the skin typically shows giant melanosomes in melanocytes and aberrant keratinocyte maturation.

Elejalde syndrome is characterized by silvery hair (eyelashes and eyebrows), neurologic defects, and normal immunologic function.^6,7 The underlying molecular basis remains unknown. It appears related to or allelic to GS type 1 and thus associated with mutations in MYO5A (myosin VA); however, the gene mutation responsible has yet to be defined.⁸ Light microscopy of the hair shaft usually shows an irregular distribution of large melanin aggregates, primarily in the medulla.^9,10 Skin biopsy generally shows irregular distribution and irregular size of melanin granules in the basal layer.¹¹ Leukocytes usually show no abnormal cytoplasmic granules. Ocular involvement is common and may present as nystagmus, diplopia, hypopigmented retinas, and/or papilledema.

In GS, hair microscopy generally reveals large aggregates of melanin pigment distributed irregularly along the hair shaft. Granulocytes typically show no giant granules. Light microscopy of the skin usually shows increased pigment in melanocytes with sparse pigment in keratinocytes. Griscelli syndrome is classified into 3 types.¹² In GS type 1, patients have silvery gray hair, light-colored skin, severe neurologic defects,¹³ and normal immune status. This variant is caused by a mutation in the MYO5A gene located on chromosome 15q21. In GS type 2, patients have silvery gray hair, pyogenic infections, an accelerated phase of hemophagocytic lymphohistiocytosis, and variable neurologic defects in the absence of primary neurologic disease.^14,15 This variant is caused by a mutation in the RAB27A (member RAS oncogene family) gene located on chromosome 15q21. In GS type 3, patients exhibit generalized hypopigmentation of the skin and hair with no abnormalities of the nervous or immune systems. There are 2 different mutations associated with GS type 3: the first is located on chromosome 2q37.3, causing a mutation in MLPH (melanophilin), and the second is caused by an F-exon deletion in the MYO5A gene.¹⁴

Our patient had silvery hair, generalized hypopigmentation of the skin and eyes, and normal central nervous system function with no other ocular involvement and no evidence of recurrent infections of any kind. Light microscopy showed small and regular melanin pigment aggregates in the hair shaft, which differs from the irregular pigment aggregates in GS and ES.

The regular melanin pigment aggregates observed along the hair shaft were consistent with CHS, but other manifestations of this syndrome were absent: ocular, neurologic, hematologic, and immunologic abnormalities with presence of giant intracytoplasmic granules in leukocytes, and giant melanosomes in melanocytes. In our patient, the absence of these features along with the spontaneous repigmentation of the silvery hair, improvement of thyroid function, reversal of hypoalbuminemia, and the chromosomopathy detected make a diagnosis of CHS highly improbable.

We concluded that the silvery hair noted in our patient resulted from the 46,XY,add(2)(p23) chromosomal abnormality. This mutation could affect some of the genes that control the trafficking of melanosomes or could induce hypothyroidism and hypoproteinemia associated with congenital hydrops fetalis (Figure 5).

Hydrops fetalis is a potentially fatal condition characterized by severe edema (swelling) in a fetus or neonate. There are 2 types of hydrops fetalis: immune and nonimmune. Immune hydrops fetalis may develop in an Rh+ fetus with an Rh– mother, as the mother’s immune cells begin to break down the red blood cells of the fetus, resulting in anemia in the fetus with subsequent fetal heart failure, leading to an accumulation of large amounts of fluid in the tissues and organs. Nonimmune hydrops fetalis can occur secondary to diseases that interfere with the fetus’s ability to manage fluid (eg, severe anemia; congenital infections; urinary, lymphatic, heart, or thoracic defects; inborn errors of metabolism; chromosomal abnormalities). Case studies have suggested that congenital hypothyroidism could be a cause of nonimmune hydrops fetalis.^16,17 Thyroid hormone deficiency reduces stimulation of adrenergic receptors in the lymphatic system and lungs, thereby decreasing lymph flow and protein efflux to the lymphatic system and decreasing clearance of liquid from the lungs. The final result is lymph vessel engorgement and subsequent leakage of lymphatic fluid to pleural spaces, causing hydrops fetalis and chylothorax.

The 46,XY,add(2)(p23) chromosomal abnormality has not been commonly associated with hypothyroidism and hydrops fetalis. The silvery hair in our patient was transient and spontaneously repigmented to brown over the course of follow-up in conjunction with improved physiologic changes. We concluded that the silvery hair in our patient was induced by his hypoproteinemic status secondary to hydrops fetalis and hypothyroidism.

Conclusion

In addition to CHS, ES, and GS, the differential diagnosis for silvery hair with abnormal skin pigmentation in children should include 46,XY,add(2)(p23) mutation, as was detected in our patient. Evaluation should include light microscopy of the hair shaft, skin biopsy, assessment of immune function, peripheral blood smear, and neurologic and eye examinations.

Silvery hair is characteristic of 3 rare autosomal-recessive disorders—Chédiak-Higashi syndrome (CHS), Elejalde syndrome (ES), and Griscelli syndrome (GS)—which are associated with mutations in various genes that encode several proteins involved in the intracellular processing and movement of melanosomes. We report the case of a 2-month-old male infant with transient silvery hair and generalized hypopigmentation of the skin and eyes who did not have any genetic mutations associated with the classic syndromes that usually are characterized by transient silvery hair.

Case Report

A 2-month-old male infant presented to the dermatology department for evaluation of silvery hair with generalized hypopigmentation of the skin and eyes (Figure 1) that had developed at 1 month of age. His parents were healthy, nonconsanguineous, and reported no family history of silvery hair. The patient was delivered by cesarean section at 35 weeks’ gestation. His medical history was remarkable for congenital hydrops fetalis with pleuropericardial effusion, ascites, soft-tissue edema, and hydrocele with no signs of any congenital infection. Both the patient and his mother were O Rh +.

Several studies were performed following delivery. A direct Coombs test was negative. Blood studies revealed hypothyroidism and hypoalbuminemia secondary to protein loss associated with fetal hydrops. Cerebral, abdominal, and renal ultrasound; echocardiogram; thoracic and abdominal computed tomography; and cerebral magnetic resonance imaging revealed no abnormalities.

Karyotype results showed 46,XY,add(2)(p23), and subsequent spectral karyotyping and fluorescence in situ hybridization tests identified a chromosomal abnormality (46,XY,add[2][p23].ish del[2][pter][2PTEL27‒], dup[4][qter][D4S2930++])(Figure 2). Parental karyotypes were normal.

After birth, the infant was admitted to the neonatal intensive care unit for 50 days and received pleural and peritoneal drainages, mechanical ventilation, vasoactive drugs, parenteral nutrition with resolution of the hypoalbuminemia, levothyroxine, and intravenous antibiotics for central venous catheter infection. No drugs known to be associated with hypopigmentation of the hair, skin, or eyes were administered.

Two weeks after discharge from the neonatal intensive care unit, the patient was referred to our department. Physical examination revealed silvery hair on the scalp, eyebrows, and eyelashes, along with generalized hypopigmentation of the skin and eyes. Abdominal, cardiovascular, respiratory, and neurologic examination revealed no abnormalities, and no hepatosplenomegaly, lymphadenopathy, nystagmus, or strabismus was noted.

Light microscopy of the hair revealed small and regular aggregates of melanin along the hair shaft, predominantly in the medulla (Figure 3). Light microscopy of a skin biopsy specimen showed normal pigmentation in the melanocytes and no giant melanosomes. The melanocyte count was within reference range. A peripheral blood smear showed no giant granules in the granulocytes. No treatment was administered and the patient was followed closely every month. When the patient returned for follow-up at 9 months of age, physical examination revealed brown hair on the head, eyebrows, and eyelashes, as well as normal pigmentation of the skin and eyes (Figure 4). Thyroid function was normal and no recurrent infections of any type were noted. At follow-up at the age of 4 years, he showed normal neurological and psychological development with brown hair, no recurrent infections, and normal thyroid function. Given that CHS, ES, and GS had been ruled out, the clinical presentation and the genetic mutation detected may indicate that this case represents a new entity characterized by transient silvery hair.

Comment

Silvery hair is a known feature of CHS, ES, and GS (Table). The characteristic hypopigmentation associated with these autosomal-recessive disorders is the result of impaired melanosome transport leading to failed transfer of melanin to keratinocytes. These disorders differ from oculocutaneous albinism in that melanin synthesis is unaffected.

Chédiak-Higashi syndrome is characterized by generalized hypopigmentation of the skin and eyes, silvery hair, neurologic and immune dysfunction, lymphoproliferative disorders, and large granules in granulocytes and other cell types.^1-3 A common complication of CHS is hemophagocytic lymphohistiocytosis, which is characterized by fever, jaundice, lymphadenopathy, hepatosplenomegaly, and pancytopenia.⁴ Pigmentary dilution of the irises also may be present, along with photophobia, strabismus, nystagmus, and impaired visual acuity. Chédiak-Higashi syndrome is the result of a genetic defect in the lysosomal trafficking regulator gene, also known as CHS1 (located on chromosome 1q42.1‒q42.2).⁵ Melanin in the hair shaft is distributed uniformly in multiple small aggregates. Light microscopy of the skin typically shows giant melanosomes in melanocytes and aberrant keratinocyte maturation.

Elejalde syndrome is characterized by silvery hair (eyelashes and eyebrows), neurologic defects, and normal immunologic function.^6,7 The underlying molecular basis remains unknown. It appears related to or allelic to GS type 1 and thus associated with mutations in MYO5A (myosin VA); however, the gene mutation responsible has yet to be defined.⁸ Light microscopy of the hair shaft usually shows an irregular distribution of large melanin aggregates, primarily in the medulla.^9,10 Skin biopsy generally shows irregular distribution and irregular size of melanin granules in the basal layer.¹¹ Leukocytes usually show no abnormal cytoplasmic granules. Ocular involvement is common and may present as nystagmus, diplopia, hypopigmented retinas, and/or papilledema.

In GS, hair microscopy generally reveals large aggregates of melanin pigment distributed irregularly along the hair shaft. Granulocytes typically show no giant granules. Light microscopy of the skin usually shows increased pigment in melanocytes with sparse pigment in keratinocytes. Griscelli syndrome is classified into 3 types.¹² In GS type 1, patients have silvery gray hair, light-colored skin, severe neurologic defects,¹³ and normal immune status. This variant is caused by a mutation in the MYO5A gene located on chromosome 15q21. In GS type 2, patients have silvery gray hair, pyogenic infections, an accelerated phase of hemophagocytic lymphohistiocytosis, and variable neurologic defects in the absence of primary neurologic disease.^14,15 This variant is caused by a mutation in the RAB27A (member RAS oncogene family) gene located on chromosome 15q21. In GS type 3, patients exhibit generalized hypopigmentation of the skin and hair with no abnormalities of the nervous or immune systems. There are 2 different mutations associated with GS type 3: the first is located on chromosome 2q37.3, causing a mutation in MLPH (melanophilin), and the second is caused by an F-exon deletion in the MYO5A gene.¹⁴

Our patient had silvery hair, generalized hypopigmentation of the skin and eyes, and normal central nervous system function with no other ocular involvement and no evidence of recurrent infections of any kind. Light microscopy showed small and regular melanin pigment aggregates in the hair shaft, which differs from the irregular pigment aggregates in GS and ES.

The regular melanin pigment aggregates observed along the hair shaft were consistent with CHS, but other manifestations of this syndrome were absent: ocular, neurologic, hematologic, and immunologic abnormalities with presence of giant intracytoplasmic granules in leukocytes, and giant melanosomes in melanocytes. In our patient, the absence of these features along with the spontaneous repigmentation of the silvery hair, improvement of thyroid function, reversal of hypoalbuminemia, and the chromosomopathy detected make a diagnosis of CHS highly improbable.

We concluded that the silvery hair noted in our patient resulted from the 46,XY,add(2)(p23) chromosomal abnormality. This mutation could affect some of the genes that control the trafficking of melanosomes or could induce hypothyroidism and hypoproteinemia associated with congenital hydrops fetalis (Figure 5).

Hydrops fetalis is a potentially fatal condition characterized by severe edema (swelling) in a fetus or neonate. There are 2 types of hydrops fetalis: immune and nonimmune. Immune hydrops fetalis may develop in an Rh+ fetus with an Rh– mother, as the mother’s immune cells begin to break down the red blood cells of the fetus, resulting in anemia in the fetus with subsequent fetal heart failure, leading to an accumulation of large amounts of fluid in the tissues and organs. Nonimmune hydrops fetalis can occur secondary to diseases that interfere with the fetus’s ability to manage fluid (eg, severe anemia; congenital infections; urinary, lymphatic, heart, or thoracic defects; inborn errors of metabolism; chromosomal abnormalities). Case studies have suggested that congenital hypothyroidism could be a cause of nonimmune hydrops fetalis.^16,17 Thyroid hormone deficiency reduces stimulation of adrenergic receptors in the lymphatic system and lungs, thereby decreasing lymph flow and protein efflux to the lymphatic system and decreasing clearance of liquid from the lungs. The final result is lymph vessel engorgement and subsequent leakage of lymphatic fluid to pleural spaces, causing hydrops fetalis and chylothorax.

The 46,XY,add(2)(p23) chromosomal abnormality has not been commonly associated with hypothyroidism and hydrops fetalis. The silvery hair in our patient was transient and spontaneously repigmented to brown over the course of follow-up in conjunction with improved physiologic changes. We concluded that the silvery hair in our patient was induced by his hypoproteinemic status secondary to hydrops fetalis and hypothyroidism.

Conclusion

In addition to CHS, ES, and GS, the differential diagnosis for silvery hair with abnormal skin pigmentation in children should include 46,XY,add(2)(p23) mutation, as was detected in our patient. Evaluation should include light microscopy of the hair shaft, skin biopsy, assessment of immune function, peripheral blood smear, and neurologic and eye examinations.

To the Editor:

Onychomadesis is characterized by separation of the nail plate from the matrix due to a temporary arrest in nail matrix activity. Hand-foot-and-mouth disease (HFMD) is a relatively common viral infection, especially in children. Although the relationship between onychomadesis and HFMD has been noted, there are few reports in the literature.^1-9 We present 2 cases of onychomadesis following HFMD in Taiwanese siblings.

A 3-year-old girl presented with proximal nail plate detachment from the proximal nail fold on the bilateral great toenails (Figure 1) and a transverse whole-thickness sulcus on the bilateral thumbnails (Figure 2) of several weeks’ duration. Her 6-year-old sister had similar nail changes. Hand-foot-and-mouth disease was diagnosed about 4 weeks prior to nail changes. The mother reported that only the younger sister experienced fever. There was no history of notable medication intake, nail trauma, periungual erythema, vesicular lesion, or dermatitis. In both patients, the nail changes were temporary with spontaneous normal nail plate regrowth several months later. A diagnosis of onychomadesis was made.

The etiology of onychomadesis includes drug ingestion, especially chemotherapy; severe systemic diseases; high fever; infection, including viral illnesses such as influenza, measles, and HFMD; and idiopathic onychomadesis.^1,2,5,10 In 2000, Clementz and Mancini¹ reported 5 children with nail matrix arrest following HFMD and suggested an epidemic caused by the same virus strain. Bernier et al² reported another 4 cases and suggested more than one viral strain may have been implicated in the nail matrix arrest. Although these authors list HFMD as one of the causes of onychomadesis,^1,2 the number of cases reported was small; however, studies with a larger number of cases and even outbreak have been reported more recently.^3-8 Salazar et al³ reported an onychomadesis outbreak associated with HFMD in Valencia, Spain, in 2008 (N=298). This outbreak primarily was caused by coxsackievirus (CV) A10 (49% of cases).⁵ Another onychomadesis outbreak occurred in Saragossa, Spain, in 2008, and CV B1, B2, and unidentified nonpoliovirus enterovirus were isolated.⁶ Outbreaks also occurred in Finland in 2008, and the causative agents were identified as CV A6 and A10.^7,8 The latency period for onychomadesis following HFMD was 1 to 2 months (mean, 40 days), and the majority of cases occurred in patients younger than 6 years.^1-5 Not all of the nails were involved; in one report, each patient shed only 4 nails on average.⁶

Although there is a definite relationship between HFMD and onychomadesis, the mechanism is still unclear. Some authors claim that nail matrix arrest is caused by high fever¹⁰; however, we found that 40% (2/5)¹ to 63% (10/16)⁴ of reported cases did not have a fever. Additionally, only 1 of our patients had fever. Therefore high fever–induced nail matrix arrest is not a reasonable explanation. Davia et al⁵ observed no relationship between onychomadesis and the severity of HFMD. In addition, no serious complications of HFMD were mentioned in prior reports.

We propose that HFMD-related onychomadesis is caused by the viral infection itself, rather than by severe systemic disease.^1-5,7 Certain viral strains associated with HFMD can induce arrest of nail matrix activity. Osterback et al⁷ detected CV A6 in shed nail fragments and suggested that virus replication damaged the nail matrix and resulted in temporary nail dystrophy. This hypothesis can explain that only some nails, not all, were involved. In our cases, we noted an incomplete and slanted cleft on the thumbnail (Figure 2). We also found that incomplete onychomadesis appeared in the clinical photograph from a prior report.⁵ The slanted cleft in our case may be caused by secondary external force after original incomplete onychomadesis or a different rate of nail regrowth because of different intensity of nail matrix damage. The phenomenon of incomplete onychomadesis in the same nail further suggests the mechanism of onychomadesis following HFMD is localized nail matrix damage.

In conclusion, we report 2 cases of onychomadesis associated with HFMD. Our report highlights that there is no racial difference in post-HFMD onychomadesis. These cases highlight that HFMD is an important cause of onychomadesis, especially in children. We suggest that certain viral strains associated with HFMD may specifically arrest nail matrix growth activity, regardless of fever or disease severity.

To the Editor:

Onychomadesis is characterized by separation of the nail plate from the matrix due to a temporary arrest in nail matrix activity. Hand-foot-and-mouth disease (HFMD) is a relatively common viral infection, especially in children. Although the relationship between onychomadesis and HFMD has been noted, there are few reports in the literature.^1-9 We present 2 cases of onychomadesis following HFMD in Taiwanese siblings.

A 3-year-old girl presented with proximal nail plate detachment from the proximal nail fold on the bilateral great toenails (Figure 1) and a transverse whole-thickness sulcus on the bilateral thumbnails (Figure 2) of several weeks’ duration. Her 6-year-old sister had similar nail changes. Hand-foot-and-mouth disease was diagnosed about 4 weeks prior to nail changes. The mother reported that only the younger sister experienced fever. There was no history of notable medication intake, nail trauma, periungual erythema, vesicular lesion, or dermatitis. In both patients, the nail changes were temporary with spontaneous normal nail plate regrowth several months later. A diagnosis of onychomadesis was made.

The etiology of onychomadesis includes drug ingestion, especially chemotherapy; severe systemic diseases; high fever; infection, including viral illnesses such as influenza, measles, and HFMD; and idiopathic onychomadesis.^1,2,5,10 In 2000, Clementz and Mancini¹ reported 5 children with nail matrix arrest following HFMD and suggested an epidemic caused by the same virus strain. Bernier et al² reported another 4 cases and suggested more than one viral strain may have been implicated in the nail matrix arrest. Although these authors list HFMD as one of the causes of onychomadesis,^1,2 the number of cases reported was small; however, studies with a larger number of cases and even outbreak have been reported more recently.^3-8 Salazar et al³ reported an onychomadesis outbreak associated with HFMD in Valencia, Spain, in 2008 (N=298). This outbreak primarily was caused by coxsackievirus (CV) A10 (49% of cases).⁵ Another onychomadesis outbreak occurred in Saragossa, Spain, in 2008, and CV B1, B2, and unidentified nonpoliovirus enterovirus were isolated.⁶ Outbreaks also occurred in Finland in 2008, and the causative agents were identified as CV A6 and A10.^7,8 The latency period for onychomadesis following HFMD was 1 to 2 months (mean, 40 days), and the majority of cases occurred in patients younger than 6 years.^1-5 Not all of the nails were involved; in one report, each patient shed only 4 nails on average.⁶

Although there is a definite relationship between HFMD and onychomadesis, the mechanism is still unclear. Some authors claim that nail matrix arrest is caused by high fever¹⁰; however, we found that 40% (2/5)¹ to 63% (10/16)⁴ of reported cases did not have a fever. Additionally, only 1 of our patients had fever. Therefore high fever–induced nail matrix arrest is not a reasonable explanation. Davia et al⁵ observed no relationship between onychomadesis and the severity of HFMD. In addition, no serious complications of HFMD were mentioned in prior reports.

We propose that HFMD-related onychomadesis is caused by the viral infection itself, rather than by severe systemic disease.^1-5,7 Certain viral strains associated with HFMD can induce arrest of nail matrix activity. Osterback et al⁷ detected CV A6 in shed nail fragments and suggested that virus replication damaged the nail matrix and resulted in temporary nail dystrophy. This hypothesis can explain that only some nails, not all, were involved. In our cases, we noted an incomplete and slanted cleft on the thumbnail (Figure 2). We also found that incomplete onychomadesis appeared in the clinical photograph from a prior report.⁵ The slanted cleft in our case may be caused by secondary external force after original incomplete onychomadesis or a different rate of nail regrowth because of different intensity of nail matrix damage. The phenomenon of incomplete onychomadesis in the same nail further suggests the mechanism of onychomadesis following HFMD is localized nail matrix damage.

In conclusion, we report 2 cases of onychomadesis associated with HFMD. Our report highlights that there is no racial difference in post-HFMD onychomadesis. These cases highlight that HFMD is an important cause of onychomadesis, especially in children. We suggest that certain viral strains associated with HFMD may specifically arrest nail matrix growth activity, regardless of fever or disease severity.

To the Editor:

Onychomadesis is characterized by separation of the nail plate from the matrix due to a temporary arrest in nail matrix activity. Hand-foot-and-mouth disease (HFMD) is a relatively common viral infection, especially in children. Although the relationship between onychomadesis and HFMD has been noted, there are few reports in the literature.^1-9 We present 2 cases of onychomadesis following HFMD in Taiwanese siblings.

A 3-year-old girl presented with proximal nail plate detachment from the proximal nail fold on the bilateral great toenails (Figure 1) and a transverse whole-thickness sulcus on the bilateral thumbnails (Figure 2) of several weeks’ duration. Her 6-year-old sister had similar nail changes. Hand-foot-and-mouth disease was diagnosed about 4 weeks prior to nail changes. The mother reported that only the younger sister experienced fever. There was no history of notable medication intake, nail trauma, periungual erythema, vesicular lesion, or dermatitis. In both patients, the nail changes were temporary with spontaneous normal nail plate regrowth several months later. A diagnosis of onychomadesis was made.

The etiology of onychomadesis includes drug ingestion, especially chemotherapy; severe systemic diseases; high fever; infection, including viral illnesses such as influenza, measles, and HFMD; and idiopathic onychomadesis.^1,2,5,10 In 2000, Clementz and Mancini¹ reported 5 children with nail matrix arrest following HFMD and suggested an epidemic caused by the same virus strain. Bernier et al² reported another 4 cases and suggested more than one viral strain may have been implicated in the nail matrix arrest. Although these authors list HFMD as one of the causes of onychomadesis,^1,2 the number of cases reported was small; however, studies with a larger number of cases and even outbreak have been reported more recently.^3-8 Salazar et al³ reported an onychomadesis outbreak associated with HFMD in Valencia, Spain, in 2008 (N=298). This outbreak primarily was caused by coxsackievirus (CV) A10 (49% of cases).⁵ Another onychomadesis outbreak occurred in Saragossa, Spain, in 2008, and CV B1, B2, and unidentified nonpoliovirus enterovirus were isolated.⁶ Outbreaks also occurred in Finland in 2008, and the causative agents were identified as CV A6 and A10.^7,8 The latency period for onychomadesis following HFMD was 1 to 2 months (mean, 40 days), and the majority of cases occurred in patients younger than 6 years.^1-5 Not all of the nails were involved; in one report, each patient shed only 4 nails on average.⁶

Although there is a definite relationship between HFMD and onychomadesis, the mechanism is still unclear. Some authors claim that nail matrix arrest is caused by high fever¹⁰; however, we found that 40% (2/5)¹ to 63% (10/16)⁴ of reported cases did not have a fever. Additionally, only 1 of our patients had fever. Therefore high fever–induced nail matrix arrest is not a reasonable explanation. Davia et al⁵ observed no relationship between onychomadesis and the severity of HFMD. In addition, no serious complications of HFMD were mentioned in prior reports.

We propose that HFMD-related onychomadesis is caused by the viral infection itself, rather than by severe systemic disease.^1-5,7 Certain viral strains associated with HFMD can induce arrest of nail matrix activity. Osterback et al⁷ detected CV A6 in shed nail fragments and suggested that virus replication damaged the nail matrix and resulted in temporary nail dystrophy. This hypothesis can explain that only some nails, not all, were involved. In our cases, we noted an incomplete and slanted cleft on the thumbnail (Figure 2). We also found that incomplete onychomadesis appeared in the clinical photograph from a prior report.⁵ The slanted cleft in our case may be caused by secondary external force after original incomplete onychomadesis or a different rate of nail regrowth because of different intensity of nail matrix damage. The phenomenon of incomplete onychomadesis in the same nail further suggests the mechanism of onychomadesis following HFMD is localized nail matrix damage.

In conclusion, we report 2 cases of onychomadesis associated with HFMD. Our report highlights that there is no racial difference in post-HFMD onychomadesis. These cases highlight that HFMD is an important cause of onychomadesis, especially in children. We suggest that certain viral strains associated with HFMD may specifically arrest nail matrix growth activity, regardless of fever or disease severity.

The Diagnosis: Superficial Acral Fibromyxoma

Superficial acral fibromyxoma (SAF) was first described in 2001 by Fetsch et al.¹ Subsequently, the term digital fibromyxoma was proposed in 2012 by Hollmann et al² to describe a distinctive, slow-growing, soft-tissue tumor with a predilection for the periungual or subungual regions of the fingers and toes. The benign growth typically presents as a painless or tender nodule in middle-aged adults with a slight male predominance (1.3:1 ratio).^1,2 In a case series (N=124) described by Hollmann et al,² 9 of 25 patients (36%) who had imaging studies showed bone involvement by an erosive or lytic lesion. Reports of SAF with bone involvement also have been described in the radiologic and orthopedic surgery literature.^3,4 Radiographically, the soft-tissue invasion of the bone is demonstrated by scalloping on plain radiographs (Figure 1).³

Histologically, SAFs are moderately cellular with spindled or stellate fibroblastlike cells within a myxoid or collagenous matrix (Figure 2).¹ The vasculature is mildly accentuated and an increase in mast cells usually is observed. The nuclei have a low degree of atypia with few mitotic figures, and the stellate cells exhibit positive immunohistochemical staining for CD34 (Figure 3), epithelial membrane antigen, and CD99.¹ Hollmann et al² found that 66 of 95 tumors (69.5%) infiltrated the dermal collagen, 26 (27.4%) infiltrated fat, and 3 (3.2%) invaded bone. Of the 47 cases that were evaluated on follow-up, 10 tumors (21.3%) recurred locally (all near the nail unit of the fingers or toes) after a mean interval of 27 months. Although invasion of underlying tissues and recurrence of the tumor has been demonstrated, this growth is considered benign. The histologic differential diagnosis includes neurofibroma, myxoma, fibroma, low-grade fibromyxoid sarcoma, dermatofibroma, superficial angiomyxoma, and dermatofibrosarcoma protuberans.²

The primary treatment of SAF is local excision. The incidence of local recurrence found in the case series by Hollmann et al² was directly linked to positive margins after the first excision (10/47 [21.3%] recurrent lesions had positive margins). To date, there are no known reports of metastatic disease in SAF.² Our case manifested with a late recurrence of the tumor and bone involvement requiring surgical excision, which illustrates the role of adjuvant imaging and close follow-up following excision of any soft-tissue tumors of the fingers and toes that have been histologically confirmed as SAF, particularly those of the periungual region.

The Diagnosis: Superficial Acral Fibromyxoma

Superficial acral fibromyxoma (SAF) was first described in 2001 by Fetsch et al.¹ Subsequently, the term digital fibromyxoma was proposed in 2012 by Hollmann et al² to describe a distinctive, slow-growing, soft-tissue tumor with a predilection for the periungual or subungual regions of the fingers and toes. The benign growth typically presents as a painless or tender nodule in middle-aged adults with a slight male predominance (1.3:1 ratio).^1,2 In a case series (N=124) described by Hollmann et al,² 9 of 25 patients (36%) who had imaging studies showed bone involvement by an erosive or lytic lesion. Reports of SAF with bone involvement also have been described in the radiologic and orthopedic surgery literature.^3,4 Radiographically, the soft-tissue invasion of the bone is demonstrated by scalloping on plain radiographs (Figure 1).³

Histologically, SAFs are moderately cellular with spindled or stellate fibroblastlike cells within a myxoid or collagenous matrix (Figure 2).¹ The vasculature is mildly accentuated and an increase in mast cells usually is observed. The nuclei have a low degree of atypia with few mitotic figures, and the stellate cells exhibit positive immunohistochemical staining for CD34 (Figure 3), epithelial membrane antigen, and CD99.¹ Hollmann et al² found that 66 of 95 tumors (69.5%) infiltrated the dermal collagen, 26 (27.4%) infiltrated fat, and 3 (3.2%) invaded bone. Of the 47 cases that were evaluated on follow-up, 10 tumors (21.3%) recurred locally (all near the nail unit of the fingers or toes) after a mean interval of 27 months. Although invasion of underlying tissues and recurrence of the tumor has been demonstrated, this growth is considered benign. The histologic differential diagnosis includes neurofibroma, myxoma, fibroma, low-grade fibromyxoid sarcoma, dermatofibroma, superficial angiomyxoma, and dermatofibrosarcoma protuberans.²

The primary treatment of SAF is local excision. The incidence of local recurrence found in the case series by Hollmann et al² was directly linked to positive margins after the first excision (10/47 [21.3%] recurrent lesions had positive margins). To date, there are no known reports of metastatic disease in SAF.² Our case manifested with a late recurrence of the tumor and bone involvement requiring surgical excision, which illustrates the role of adjuvant imaging and close follow-up following excision of any soft-tissue tumors of the fingers and toes that have been histologically confirmed as SAF, particularly those of the periungual region.

The Diagnosis: Superficial Acral Fibromyxoma

Superficial acral fibromyxoma (SAF) was first described in 2001 by Fetsch et al.¹ Subsequently, the term digital fibromyxoma was proposed in 2012 by Hollmann et al² to describe a distinctive, slow-growing, soft-tissue tumor with a predilection for the periungual or subungual regions of the fingers and toes. The benign growth typically presents as a painless or tender nodule in middle-aged adults with a slight male predominance (1.3:1 ratio).^1,2 In a case series (N=124) described by Hollmann et al,² 9 of 25 patients (36%) who had imaging studies showed bone involvement by an erosive or lytic lesion. Reports of SAF with bone involvement also have been described in the radiologic and orthopedic surgery literature.^3,4 Radiographically, the soft-tissue invasion of the bone is demonstrated by scalloping on plain radiographs (Figure 1).³

Histologically, SAFs are moderately cellular with spindled or stellate fibroblastlike cells within a myxoid or collagenous matrix (Figure 2).¹ The vasculature is mildly accentuated and an increase in mast cells usually is observed. The nuclei have a low degree of atypia with few mitotic figures, and the stellate cells exhibit positive immunohistochemical staining for CD34 (Figure 3), epithelial membrane antigen, and CD99.¹ Hollmann et al² found that 66 of 95 tumors (69.5%) infiltrated the dermal collagen, 26 (27.4%) infiltrated fat, and 3 (3.2%) invaded bone. Of the 47 cases that were evaluated on follow-up, 10 tumors (21.3%) recurred locally (all near the nail unit of the fingers or toes) after a mean interval of 27 months. Although invasion of underlying tissues and recurrence of the tumor has been demonstrated, this growth is considered benign. The histologic differential diagnosis includes neurofibroma, myxoma, fibroma, low-grade fibromyxoid sarcoma, dermatofibroma, superficial angiomyxoma, and dermatofibrosarcoma protuberans.²

The primary treatment of SAF is local excision. The incidence of local recurrence found in the case series by Hollmann et al² was directly linked to positive margins after the first excision (10/47 [21.3%] recurrent lesions had positive margins). To date, there are no known reports of metastatic disease in SAF.² Our case manifested with a late recurrence of the tumor and bone involvement requiring surgical excision, which illustrates the role of adjuvant imaging and close follow-up following excision of any soft-tissue tumors of the fingers and toes that have been histologically confirmed as SAF, particularly those of the periungual region.

Onychomatricoma (OM) is a rare benign neoplasm of the nail matrix. Even less common is its possible association with both trauma to the nail apparatus and onychomycosis. This case illustrates both of these findings.

Case Report
A 72-year-old white man presented to the dermatology clinic with a 26-year history of a thickened nail plate on the right third finger that had developed soon after a baseball injury. The patient reported that the nail was completely normal prior to the trauma. According to the patient, the distal aspect of the finger was directly hit by a baseball and subsequently was wrapped by the patient for a few weeks. The nail then turned black and eventually fell off. When the nail grew back, it appeared abnormal and in its current state. The patient stated the lesion was asymptomatic at the time of presentation.

Physical examination revealed thickening, yellow discoloration, and transverse overcurvature of the nail plate on the right third finger with longitudinal ridging (Figure 1). A culture of the nail plate grew Chaetomium species. Application of topical clotrimazole for 3 months followed by a 6-week course of oral terbinafine produced no improvement. The patient then consented to a nail matrix incisional biopsy 6 months after initial presentation. After a digital nerve block was administered and a tourniquet of the proximal digit was applied, a nail avulsion was performed. Subsequently, a 3-mm punch biopsy was taken of the clinically apparent tumor in the nail matrix.

On microscopic examination of the removed tissue, a benign mixed epithelial and stromal proliferative lesion was noted. The basaloid epithelium, lacking a granular layer, arose from the surface epithelial layer and formed a reticulated pattern extending into the stromal component, which was moderately cellular with spindle to fusiform nuclei dissecting between collagen bundles arranged in parallel arrays (Figure 2). The stromal component predominated over the epithelial component in this neoplasm. The nail was preserved in formalin and underwent hematoxylin and eosin staining. It was thickened and grossly showed filiform fibrous projections extending into the nail plate. Histologically, the nail displayed prominent oval clear channels. Periodic acid–Schiff staining was negative for fungal organisms.

A diagnosis of unguioblastic fibroma–type OM was made. After receiving the diagnosis, expected course, and treatment options, the patient was offered conservative surgical excision but preferred clinical monitoring. At his last visit (6 months after the biopsy), the nail plate distal to the biopsy site had thinning and improvement, while the nail plate distal to the matrix that was not removed continued to show thickening, yellow discoloration, overcurvature, and longitudinal ridging (Figure 3).

Figure 2. The basaloid epithelium arose from the surface epithelial layer and formed a reticulated pattern extending into the stromal component (A)(H&E, original magnification ×2). At higher magnification, the stromal component was moderately cellular with spindle to fusiform nuclei dissecting between collagen bundles arranged in parallel arrays (B)(H&E, original magnification ×10).

Comment
Onychomatricoma is a rare tumor originating from the nail matrix. The tumor was first described by Baran and Kint¹ in 1992 using the term onychomatrixoma, but later the term onychomatricoma became more widely used.² Onychomatricomas are more common in adults (mean age, 48 years) and white individuals with no gender predilection.^3,4 Fingernail involvement is twice as common as toenail involvement.³ Onychomatricoma is the only tumor that actively produces a nail plate.⁴

Clinically, OM presents with yellow discoloration along the entire nail plate and proximal splinter hemorrhages. It has a tendency toward transverse overcurvature of the nail plate with prominent longitudinal ridging.⁴ Trauma has been associated in at least 3 cases reported in the literature, though the association was sometimes weak.^3,4 Xanthonychia and onychodystrophy of the nail are common.³ Pterygium, melanonychia, nail bleeding, and cutaneous horns have been reported but are rare.^3-5 The tumor typically is painless with no radiographic bone involvement.³ Onychomycosis can be present,³ which may either be a predisposing factor for the tumor or secondary due to the deformed nail plate.⁴

When the nail plate is avulsed and the proximal nail fold is turned back, the matrix tumor is exposed. This polypoid and filiform tumor has characteristic fingerlike fibrokeratogenous projections extending from the nail matrix into the nail plate.³

Histologically, the tumor is fibroepithelial or biphasic with stromal and epithelial components. It has a lobulated and papillary growth pattern with 2 distinct areas that correspond to 2 anatomic zones.³ The base of the tumor corresponds to the proximal anatomic zone, which begins at the root of the nail and extends to the cuticle. This area is composed of V-shaped keratinous zones similar to the normal matrix. If the nail is removed prior to excision, these areas can be avulsed, leaving clear clefts. The superficial aspect of the tumor corresponds to the distal anatomic zone, which is located in the region of the lunula. This area is composed of multiple digitate or fingerlike projections with a fibrous core and a thick matrical epithelial covering.³ These digitations extend into small cavities in the nail plate, which can be visualized as clear channels or woodwormlike holes in hematoxylin and eosin–stained specimens. A biphasic fibrous stroma also can be observed with the superficial dermis being cellular with fibrillary collagen and the deep dermis more hypocellular with thicker collagen bundles.^3,4

An analysis of keratins in the nail matrix, bed, and isthmus showed that OM has the capacity to recapitulate the entire nail unit with differentiation toward the nail bed and isthmus.⁶ It appears that the mesenchymal component has an inductive effect that can lead to complete epithelial onychogenic differentiation.⁶

Due to the histological differences among the described cases of OM in the literature, a new classification based on the spectrum of epithelial to stromal ratio of stromal cellularity and the extent of nuclear pleomorphism was proposed in 2004.⁷ The prominent feature of the unguioblastoma type of OM is epithelial, while the cellular stroma is the prominent feature in the unguioblastic fibroma type. Atypical unguioblastic fibroma refers to a tumor with increased mitotic activity and nuclear pleomorphism among the stroma.⁷

Most OM tumors follow a benign clinical course; however, complete excision is advised to include the normal nail matrix proximal to the lesion, which may prevent recurrence and serves as a primary treatment.

Conclusion
Onychomatricoma is a benign neoplasm of the nail matrix that may be triggered by trauma; however, due to the weak association, further observations and studies should be conducted to substantiate this possibility. Patients with the classic clinical presentation possibly may be spared a nail avulsion and biopsy. Onychomycosis occurs in the setting of OM, and culture and treatment are unlikely to change the appearance or course of this nail condition.

Onychomatricoma (OM) is a rare benign neoplasm of the nail matrix. Even less common is its possible association with both trauma to the nail apparatus and onychomycosis. This case illustrates both of these findings.

Case Report
A 72-year-old white man presented to the dermatology clinic with a 26-year history of a thickened nail plate on the right third finger that had developed soon after a baseball injury. The patient reported that the nail was completely normal prior to the trauma. According to the patient, the distal aspect of the finger was directly hit by a baseball and subsequently was wrapped by the patient for a few weeks. The nail then turned black and eventually fell off. When the nail grew back, it appeared abnormal and in its current state. The patient stated the lesion was asymptomatic at the time of presentation.

Physical examination revealed thickening, yellow discoloration, and transverse overcurvature of the nail plate on the right third finger with longitudinal ridging (Figure 1). A culture of the nail plate grew Chaetomium species. Application of topical clotrimazole for 3 months followed by a 6-week course of oral terbinafine produced no improvement. The patient then consented to a nail matrix incisional biopsy 6 months after initial presentation. After a digital nerve block was administered and a tourniquet of the proximal digit was applied, a nail avulsion was performed. Subsequently, a 3-mm punch biopsy was taken of the clinically apparent tumor in the nail matrix.

On microscopic examination of the removed tissue, a benign mixed epithelial and stromal proliferative lesion was noted. The basaloid epithelium, lacking a granular layer, arose from the surface epithelial layer and formed a reticulated pattern extending into the stromal component, which was moderately cellular with spindle to fusiform nuclei dissecting between collagen bundles arranged in parallel arrays (Figure 2). The stromal component predominated over the epithelial component in this neoplasm. The nail was preserved in formalin and underwent hematoxylin and eosin staining. It was thickened and grossly showed filiform fibrous projections extending into the nail plate. Histologically, the nail displayed prominent oval clear channels. Periodic acid–Schiff staining was negative for fungal organisms.

A diagnosis of unguioblastic fibroma–type OM was made. After receiving the diagnosis, expected course, and treatment options, the patient was offered conservative surgical excision but preferred clinical monitoring. At his last visit (6 months after the biopsy), the nail plate distal to the biopsy site had thinning and improvement, while the nail plate distal to the matrix that was not removed continued to show thickening, yellow discoloration, overcurvature, and longitudinal ridging (Figure 3).

Figure 2. The basaloid epithelium arose from the surface epithelial layer and formed a reticulated pattern extending into the stromal component (A)(H&E, original magnification ×2). At higher magnification, the stromal component was moderately cellular with spindle to fusiform nuclei dissecting between collagen bundles arranged in parallel arrays (B)(H&E, original magnification ×10).

Comment
Onychomatricoma is a rare tumor originating from the nail matrix. The tumor was first described by Baran and Kint¹ in 1992 using the term onychomatrixoma, but later the term onychomatricoma became more widely used.² Onychomatricomas are more common in adults (mean age, 48 years) and white individuals with no gender predilection.^3,4 Fingernail involvement is twice as common as toenail involvement.³ Onychomatricoma is the only tumor that actively produces a nail plate.⁴

Clinically, OM presents with yellow discoloration along the entire nail plate and proximal splinter hemorrhages. It has a tendency toward transverse overcurvature of the nail plate with prominent longitudinal ridging.⁴ Trauma has been associated in at least 3 cases reported in the literature, though the association was sometimes weak.^3,4 Xanthonychia and onychodystrophy of the nail are common.³ Pterygium, melanonychia, nail bleeding, and cutaneous horns have been reported but are rare.^3-5 The tumor typically is painless with no radiographic bone involvement.³ Onychomycosis can be present,³ which may either be a predisposing factor for the tumor or secondary due to the deformed nail plate.⁴

When the nail plate is avulsed and the proximal nail fold is turned back, the matrix tumor is exposed. This polypoid and filiform tumor has characteristic fingerlike fibrokeratogenous projections extending from the nail matrix into the nail plate.³

Histologically, the tumor is fibroepithelial or biphasic with stromal and epithelial components. It has a lobulated and papillary growth pattern with 2 distinct areas that correspond to 2 anatomic zones.³ The base of the tumor corresponds to the proximal anatomic zone, which begins at the root of the nail and extends to the cuticle. This area is composed of V-shaped keratinous zones similar to the normal matrix. If the nail is removed prior to excision, these areas can be avulsed, leaving clear clefts. The superficial aspect of the tumor corresponds to the distal anatomic zone, which is located in the region of the lunula. This area is composed of multiple digitate or fingerlike projections with a fibrous core and a thick matrical epithelial covering.³ These digitations extend into small cavities in the nail plate, which can be visualized as clear channels or woodwormlike holes in hematoxylin and eosin–stained specimens. A biphasic fibrous stroma also can be observed with the superficial dermis being cellular with fibrillary collagen and the deep dermis more hypocellular with thicker collagen bundles.^3,4

An analysis of keratins in the nail matrix, bed, and isthmus showed that OM has the capacity to recapitulate the entire nail unit with differentiation toward the nail bed and isthmus.⁶ It appears that the mesenchymal component has an inductive effect that can lead to complete epithelial onychogenic differentiation.⁶

Due to the histological differences among the described cases of OM in the literature, a new classification based on the spectrum of epithelial to stromal ratio of stromal cellularity and the extent of nuclear pleomorphism was proposed in 2004.⁷ The prominent feature of the unguioblastoma type of OM is epithelial, while the cellular stroma is the prominent feature in the unguioblastic fibroma type. Atypical unguioblastic fibroma refers to a tumor with increased mitotic activity and nuclear pleomorphism among the stroma.⁷

Most OM tumors follow a benign clinical course; however, complete excision is advised to include the normal nail matrix proximal to the lesion, which may prevent recurrence and serves as a primary treatment.

Conclusion
Onychomatricoma is a benign neoplasm of the nail matrix that may be triggered by trauma; however, due to the weak association, further observations and studies should be conducted to substantiate this possibility. Patients with the classic clinical presentation possibly may be spared a nail avulsion and biopsy. Onychomycosis occurs in the setting of OM, and culture and treatment are unlikely to change the appearance or course of this nail condition.

Onychomatricoma (OM) is a rare benign neoplasm of the nail matrix. Even less common is its possible association with both trauma to the nail apparatus and onychomycosis. This case illustrates both of these findings.

Case Report
A 72-year-old white man presented to the dermatology clinic with a 26-year history of a thickened nail plate on the right third finger that had developed soon after a baseball injury. The patient reported that the nail was completely normal prior to the trauma. According to the patient, the distal aspect of the finger was directly hit by a baseball and subsequently was wrapped by the patient for a few weeks. The nail then turned black and eventually fell off. When the nail grew back, it appeared abnormal and in its current state. The patient stated the lesion was asymptomatic at the time of presentation.

Physical examination revealed thickening, yellow discoloration, and transverse overcurvature of the nail plate on the right third finger with longitudinal ridging (Figure 1). A culture of the nail plate grew Chaetomium species. Application of topical clotrimazole for 3 months followed by a 6-week course of oral terbinafine produced no improvement. The patient then consented to a nail matrix incisional biopsy 6 months after initial presentation. After a digital nerve block was administered and a tourniquet of the proximal digit was applied, a nail avulsion was performed. Subsequently, a 3-mm punch biopsy was taken of the clinically apparent tumor in the nail matrix.

On microscopic examination of the removed tissue, a benign mixed epithelial and stromal proliferative lesion was noted. The basaloid epithelium, lacking a granular layer, arose from the surface epithelial layer and formed a reticulated pattern extending into the stromal component, which was moderately cellular with spindle to fusiform nuclei dissecting between collagen bundles arranged in parallel arrays (Figure 2). The stromal component predominated over the epithelial component in this neoplasm. The nail was preserved in formalin and underwent hematoxylin and eosin staining. It was thickened and grossly showed filiform fibrous projections extending into the nail plate. Histologically, the nail displayed prominent oval clear channels. Periodic acid–Schiff staining was negative for fungal organisms.

A diagnosis of unguioblastic fibroma–type OM was made. After receiving the diagnosis, expected course, and treatment options, the patient was offered conservative surgical excision but preferred clinical monitoring. At his last visit (6 months after the biopsy), the nail plate distal to the biopsy site had thinning and improvement, while the nail plate distal to the matrix that was not removed continued to show thickening, yellow discoloration, overcurvature, and longitudinal ridging (Figure 3).

Figure 2. The basaloid epithelium arose from the surface epithelial layer and formed a reticulated pattern extending into the stromal component (A)(H&E, original magnification ×2). At higher magnification, the stromal component was moderately cellular with spindle to fusiform nuclei dissecting between collagen bundles arranged in parallel arrays (B)(H&E, original magnification ×10).

Comment
Onychomatricoma is a rare tumor originating from the nail matrix. The tumor was first described by Baran and Kint¹ in 1992 using the term onychomatrixoma, but later the term onychomatricoma became more widely used.² Onychomatricomas are more common in adults (mean age, 48 years) and white individuals with no gender predilection.^3,4 Fingernail involvement is twice as common as toenail involvement.³ Onychomatricoma is the only tumor that actively produces a nail plate.⁴

Clinically, OM presents with yellow discoloration along the entire nail plate and proximal splinter hemorrhages. It has a tendency toward transverse overcurvature of the nail plate with prominent longitudinal ridging.⁴ Trauma has been associated in at least 3 cases reported in the literature, though the association was sometimes weak.^3,4 Xanthonychia and onychodystrophy of the nail are common.³ Pterygium, melanonychia, nail bleeding, and cutaneous horns have been reported but are rare.^3-5 The tumor typically is painless with no radiographic bone involvement.³ Onychomycosis can be present,³ which may either be a predisposing factor for the tumor or secondary due to the deformed nail plate.⁴

When the nail plate is avulsed and the proximal nail fold is turned back, the matrix tumor is exposed. This polypoid and filiform tumor has characteristic fingerlike fibrokeratogenous projections extending from the nail matrix into the nail plate.³

Histologically, the tumor is fibroepithelial or biphasic with stromal and epithelial components. It has a lobulated and papillary growth pattern with 2 distinct areas that correspond to 2 anatomic zones.³ The base of the tumor corresponds to the proximal anatomic zone, which begins at the root of the nail and extends to the cuticle. This area is composed of V-shaped keratinous zones similar to the normal matrix. If the nail is removed prior to excision, these areas can be avulsed, leaving clear clefts. The superficial aspect of the tumor corresponds to the distal anatomic zone, which is located in the region of the lunula. This area is composed of multiple digitate or fingerlike projections with a fibrous core and a thick matrical epithelial covering.³ These digitations extend into small cavities in the nail plate, which can be visualized as clear channels or woodwormlike holes in hematoxylin and eosin–stained specimens. A biphasic fibrous stroma also can be observed with the superficial dermis being cellular with fibrillary collagen and the deep dermis more hypocellular with thicker collagen bundles.^3,4

An analysis of keratins in the nail matrix, bed, and isthmus showed that OM has the capacity to recapitulate the entire nail unit with differentiation toward the nail bed and isthmus.⁶ It appears that the mesenchymal component has an inductive effect that can lead to complete epithelial onychogenic differentiation.⁶

Due to the histological differences among the described cases of OM in the literature, a new classification based on the spectrum of epithelial to stromal ratio of stromal cellularity and the extent of nuclear pleomorphism was proposed in 2004.⁷ The prominent feature of the unguioblastoma type of OM is epithelial, while the cellular stroma is the prominent feature in the unguioblastic fibroma type. Atypical unguioblastic fibroma refers to a tumor with increased mitotic activity and nuclear pleomorphism among the stroma.⁷

Most OM tumors follow a benign clinical course; however, complete excision is advised to include the normal nail matrix proximal to the lesion, which may prevent recurrence and serves as a primary treatment.

Conclusion
Onychomatricoma is a benign neoplasm of the nail matrix that may be triggered by trauma; however, due to the weak association, further observations and studies should be conducted to substantiate this possibility. Patients with the classic clinical presentation possibly may be spared a nail avulsion and biopsy. Onychomycosis occurs in the setting of OM, and culture and treatment are unlikely to change the appearance or course of this nail condition.

Many male and female patients seek therapy for androgenetic alopecia (AGA) at some point. Results are rarely achieved with single-modality therapy. In fact, the treatment of AGA often requires a combination approach of systemic medications and supplements; topical therapy; and if indicated, some type of minimally invasive procedure or surgical option.

The use of platelet-rich plasma (PRP) to pretreat follicular unit hair grafts may increase hair growth and density. Although the method by which PRP helps promote hair growth remains a source of speculation, it is known that platelets contain many growth factors in the platelet α granules. When these granules become activated, they release many types of growth factors ranging from vascular endothelial growth factor, transforming growth factor ß, epidermal growth factor, platelet-derived growth factor, and insulinlike growth factor.

Injection or topical application of PRP has become a popular treatment for skin rejuvenation, alopecia, and autologous fat grafting; however, many of these treatments are being done without the studies to support them.

Alves and Grimalt (Dermatol Surg. 2016;42:491-497) conducted a prospective, split-scalp, placebo-controlled study evaluating the use of PRP injections in the treatment of AGA in 25 patients (12 men, 13 women) with a mean age of 39 years (age range, 21–62 years). Photographs were taken and 4 areas per split scalp were marked with red tattoo dots. The patients were randomized to receive PRP on 1 side and saline injections on the other side. Patients were blinded, but the physician performing the treatment was not blinded. Treatments were performed monthly for 3 sessions. Follow-up photographs and hair density counts were performed at 3 and 6 months after treatment.

Results showed that after 6 months there was a statistically significant (P<.05) increase in the total hair density and terminal hair counts on the PRP-treated side compared to baseline and to the placebo-treated side. When broken down by demographics, patients who did best were men 40 years or younger with AGA beginning at 25 years or older, a positive family history of AGA, and AGA duration of greater than 10 years.

What’s the issue?

The results of this study suggest that PRP has a mild to modest effect (approximately 10% increase) on increasing hair density in a specific patient population. This split-scalp, placebo-controlled study is one of the few of its kind in the field of PRP research and the authors should be applauded for the design of this study. However, it would be beneficial to have a 1-year follow-up to see if the results are maintained and to better help determine if maintenance injections would be needed to sustain the results.

The field of hair restoration and regeneration will continue to grow as newer technologies in hair stem cell injections come to the forefront as well. Rigorous studies will be needed to better help physicians and patients make the right treatment decisions.

Have patients been asking you about PRP for skin rejuvenation and hair restoration?

We want to know your views! Tell us what you think.

Many male and female patients seek therapy for androgenetic alopecia (AGA) at some point. Results are rarely achieved with single-modality therapy. In fact, the treatment of AGA often requires a combination approach of systemic medications and supplements; topical therapy; and if indicated, some type of minimally invasive procedure or surgical option.

The use of platelet-rich plasma (PRP) to pretreat follicular unit hair grafts may increase hair growth and density. Although the method by which PRP helps promote hair growth remains a source of speculation, it is known that platelets contain many growth factors in the platelet α granules. When these granules become activated, they release many types of growth factors ranging from vascular endothelial growth factor, transforming growth factor ß, epidermal growth factor, platelet-derived growth factor, and insulinlike growth factor.

Injection or topical application of PRP has become a popular treatment for skin rejuvenation, alopecia, and autologous fat grafting; however, many of these treatments are being done without the studies to support them.

Alves and Grimalt (Dermatol Surg. 2016;42:491-497) conducted a prospective, split-scalp, placebo-controlled study evaluating the use of PRP injections in the treatment of AGA in 25 patients (12 men, 13 women) with a mean age of 39 years (age range, 21–62 years). Photographs were taken and 4 areas per split scalp were marked with red tattoo dots. The patients were randomized to receive PRP on 1 side and saline injections on the other side. Patients were blinded, but the physician performing the treatment was not blinded. Treatments were performed monthly for 3 sessions. Follow-up photographs and hair density counts were performed at 3 and 6 months after treatment.

Results showed that after 6 months there was a statistically significant (P<.05) increase in the total hair density and terminal hair counts on the PRP-treated side compared to baseline and to the placebo-treated side. When broken down by demographics, patients who did best were men 40 years or younger with AGA beginning at 25 years or older, a positive family history of AGA, and AGA duration of greater than 10 years.

What’s the issue?

The results of this study suggest that PRP has a mild to modest effect (approximately 10% increase) on increasing hair density in a specific patient population. This split-scalp, placebo-controlled study is one of the few of its kind in the field of PRP research and the authors should be applauded for the design of this study. However, it would be beneficial to have a 1-year follow-up to see if the results are maintained and to better help determine if maintenance injections would be needed to sustain the results.

The field of hair restoration and regeneration will continue to grow as newer technologies in hair stem cell injections come to the forefront as well. Rigorous studies will be needed to better help physicians and patients make the right treatment decisions.

Have patients been asking you about PRP for skin rejuvenation and hair restoration?

We want to know your views! Tell us what you think.

Many male and female patients seek therapy for androgenetic alopecia (AGA) at some point. Results are rarely achieved with single-modality therapy. In fact, the treatment of AGA often requires a combination approach of systemic medications and supplements; topical therapy; and if indicated, some type of minimally invasive procedure or surgical option.

The use of platelet-rich plasma (PRP) to pretreat follicular unit hair grafts may increase hair growth and density. Although the method by which PRP helps promote hair growth remains a source of speculation, it is known that platelets contain many growth factors in the platelet α granules. When these granules become activated, they release many types of growth factors ranging from vascular endothelial growth factor, transforming growth factor ß, epidermal growth factor, platelet-derived growth factor, and insulinlike growth factor.

Injection or topical application of PRP has become a popular treatment for skin rejuvenation, alopecia, and autologous fat grafting; however, many of these treatments are being done without the studies to support them.

Alves and Grimalt (Dermatol Surg. 2016;42:491-497) conducted a prospective, split-scalp, placebo-controlled study evaluating the use of PRP injections in the treatment of AGA in 25 patients (12 men, 13 women) with a mean age of 39 years (age range, 21–62 years). Photographs were taken and 4 areas per split scalp were marked with red tattoo dots. The patients were randomized to receive PRP on 1 side and saline injections on the other side. Patients were blinded, but the physician performing the treatment was not blinded. Treatments were performed monthly for 3 sessions. Follow-up photographs and hair density counts were performed at 3 and 6 months after treatment.

Results showed that after 6 months there was a statistically significant (P<.05) increase in the total hair density and terminal hair counts on the PRP-treated side compared to baseline and to the placebo-treated side. When broken down by demographics, patients who did best were men 40 years or younger with AGA beginning at 25 years or older, a positive family history of AGA, and AGA duration of greater than 10 years.

What’s the issue?

The results of this study suggest that PRP has a mild to modest effect (approximately 10% increase) on increasing hair density in a specific patient population. This split-scalp, placebo-controlled study is one of the few of its kind in the field of PRP research and the authors should be applauded for the design of this study. However, it would be beneficial to have a 1-year follow-up to see if the results are maintained and to better help determine if maintenance injections would be needed to sustain the results.

The field of hair restoration and regeneration will continue to grow as newer technologies in hair stem cell injections come to the forefront as well. Rigorous studies will be needed to better help physicians and patients make the right treatment decisions.

Have patients been asking you about PRP for skin rejuvenation and hair restoration?

We want to know your views! Tell us what you think.

WAIKOLOA, HAWAII – Toenail onychomycosis is a common condition in the general population, but it’s three- to fourfold more prevalent in certain at risk populations where it can have serious and even life-threatening consequences, Dr. Theodore Rosen observed at the Hawaii Dermatology Seminar provided by the Global Academy for Medical Education/Skin Disease Education Foundation.

He cited a recent systematic review led by Dr. Aditya K. Gupta, professor of dermatology at the University of Toronto, whom Dr. Rosen hailed as one of the world’s great fungal disease authorities. Dr. Gupta and coworkers concluded that while the prevalence of dermatophyte toenail onychomycosis is 3.2% worldwide in the general population, it climbs to 8.8% in diabetics, 10.2% in psoriatics, 10.3% in the elderly, 11.9% in dialysis patients, 5.2% in renal transplant recipients, and 10.4% in HIV-positive individuals. The highest prevalence of onychomycosis due to non-dermatophyte molds was seen in psoriasis patients, at 2.5%, while elderly patients had the highest prevalence of onychomycosis caused by yeasts, at 6.1% (J Eur Acad Dermatol Venereol. 2015 Jun;29[6]:1039-44).

“Onychomycosis is especially important in those who are immunocompromised and immunosuppressed, for two reasons. One is that really odd organisms that aren’t Trichophyton rubrum or T. interdigitale can be involved: saprophytes like Scopulariopsis, Acremonium, Aspergillus, and Paecilomyces. And some of these saprophytes, like Fusarium, can get from the nail and nail bed into the bloodstream and can kill,” explained Dr. Rosen, professor of dermatology at Baylor College of Medicine in Houston.

“Onychomycosis, aside from the fact that it looks bad and often leads to pain, can also lead to breaks in the skin which then result in secondary bacterial infections. In fact, after motor vehicle accidents, onychomycosis and tinea pedis combined are the most common cause of lower extremity cellulitis leading to hospitalization in the United States,” he continued.

The go-to treatments for onychomycosis in patients with a bad prognostic factor are oral itraconazole (Sporanox) and terbinafine. Don’t be unduly swayed by the complete cure rates reported in clinical trials and cited in the product package inserts; they don’t tell the full story because of important differences in study design, according to Dr. Rosen.

He recommended that physicians familiarize themselves with posaconazole (Noxafil) as an antifungal to consider for second-line therapy in difficult-to-cure cases of onychomycosis in immunosuppressed patients. This is off-label therapy. The approved indications for this triazole antifungal agent are prophylaxis of invasive Aspergillus and Candida infections in severely immunocompromised patients, as well as treatment of oropharyngeal candidiasis. But this is a potent agent that provides broad-spectrum coverage coupled with a favorable safety profile. It performed well in a phase IIb randomized, placebo- and active-controlled, multicenter, investigator-blinded study of 218 adults with toenail onychomycosis (Br J Dermatol. 2012 Feb;166[2]:389-98).

Dr. Rosen reported serving on scientific advisory boards for Anacor, Merz, and Valeant.

SDEF and this news organization are owned by the same parent company.

[email protected]

WAIKOLOA, HAWAII – Toenail onychomycosis is a common condition in the general population, but it’s three- to fourfold more prevalent in certain at risk populations where it can have serious and even life-threatening consequences, Dr. Theodore Rosen observed at the Hawaii Dermatology Seminar provided by the Global Academy for Medical Education/Skin Disease Education Foundation.

He cited a recent systematic review led by Dr. Aditya K. Gupta, professor of dermatology at the University of Toronto, whom Dr. Rosen hailed as one of the world’s great fungal disease authorities. Dr. Gupta and coworkers concluded that while the prevalence of dermatophyte toenail onychomycosis is 3.2% worldwide in the general population, it climbs to 8.8% in diabetics, 10.2% in psoriatics, 10.3% in the elderly, 11.9% in dialysis patients, 5.2% in renal transplant recipients, and 10.4% in HIV-positive individuals. The highest prevalence of onychomycosis due to non-dermatophyte molds was seen in psoriasis patients, at 2.5%, while elderly patients had the highest prevalence of onychomycosis caused by yeasts, at 6.1% (J Eur Acad Dermatol Venereol. 2015 Jun;29[6]:1039-44).

“Onychomycosis is especially important in those who are immunocompromised and immunosuppressed, for two reasons. One is that really odd organisms that aren’t Trichophyton rubrum or T. interdigitale can be involved: saprophytes like Scopulariopsis, Acremonium, Aspergillus, and Paecilomyces. And some of these saprophytes, like Fusarium, can get from the nail and nail bed into the bloodstream and can kill,” explained Dr. Rosen, professor of dermatology at Baylor College of Medicine in Houston.

“Onychomycosis, aside from the fact that it looks bad and often leads to pain, can also lead to breaks in the skin which then result in secondary bacterial infections. In fact, after motor vehicle accidents, onychomycosis and tinea pedis combined are the most common cause of lower extremity cellulitis leading to hospitalization in the United States,” he continued.

The go-to treatments for onychomycosis in patients with a bad prognostic factor are oral itraconazole (Sporanox) and terbinafine. Don’t be unduly swayed by the complete cure rates reported in clinical trials and cited in the product package inserts; they don’t tell the full story because of important differences in study design, according to Dr. Rosen.

He recommended that physicians familiarize themselves with posaconazole (Noxafil) as an antifungal to consider for second-line therapy in difficult-to-cure cases of onychomycosis in immunosuppressed patients. This is off-label therapy. The approved indications for this triazole antifungal agent are prophylaxis of invasive Aspergillus and Candida infections in severely immunocompromised patients, as well as treatment of oropharyngeal candidiasis. But this is a potent agent that provides broad-spectrum coverage coupled with a favorable safety profile. It performed well in a phase IIb randomized, placebo- and active-controlled, multicenter, investigator-blinded study of 218 adults with toenail onychomycosis (Br J Dermatol. 2012 Feb;166[2]:389-98).

Dr. Rosen reported serving on scientific advisory boards for Anacor, Merz, and Valeant.

SDEF and this news organization are owned by the same parent company.

[email protected]

WAIKOLOA, HAWAII – Toenail onychomycosis is a common condition in the general population, but it’s three- to fourfold more prevalent in certain at risk populations where it can have serious and even life-threatening consequences, Dr. Theodore Rosen observed at the Hawaii Dermatology Seminar provided by the Global Academy for Medical Education/Skin Disease Education Foundation.

He cited a recent systematic review led by Dr. Aditya K. Gupta, professor of dermatology at the University of Toronto, whom Dr. Rosen hailed as one of the world’s great fungal disease authorities. Dr. Gupta and coworkers concluded that while the prevalence of dermatophyte toenail onychomycosis is 3.2% worldwide in the general population, it climbs to 8.8% in diabetics, 10.2% in psoriatics, 10.3% in the elderly, 11.9% in dialysis patients, 5.2% in renal transplant recipients, and 10.4% in HIV-positive individuals. The highest prevalence of onychomycosis due to non-dermatophyte molds was seen in psoriasis patients, at 2.5%, while elderly patients had the highest prevalence of onychomycosis caused by yeasts, at 6.1% (J Eur Acad Dermatol Venereol. 2015 Jun;29[6]:1039-44).

“Onychomycosis is especially important in those who are immunocompromised and immunosuppressed, for two reasons. One is that really odd organisms that aren’t Trichophyton rubrum or T. interdigitale can be involved: saprophytes like Scopulariopsis, Acremonium, Aspergillus, and Paecilomyces. And some of these saprophytes, like Fusarium, can get from the nail and nail bed into the bloodstream and can kill,” explained Dr. Rosen, professor of dermatology at Baylor College of Medicine in Houston.

“Onychomycosis, aside from the fact that it looks bad and often leads to pain, can also lead to breaks in the skin which then result in secondary bacterial infections. In fact, after motor vehicle accidents, onychomycosis and tinea pedis combined are the most common cause of lower extremity cellulitis leading to hospitalization in the United States,” he continued.

The go-to treatments for onychomycosis in patients with a bad prognostic factor are oral itraconazole (Sporanox) and terbinafine. Don’t be unduly swayed by the complete cure rates reported in clinical trials and cited in the product package inserts; they don’t tell the full story because of important differences in study design, according to Dr. Rosen.

He recommended that physicians familiarize themselves with posaconazole (Noxafil) as an antifungal to consider for second-line therapy in difficult-to-cure cases of onychomycosis in immunosuppressed patients. This is off-label therapy. The approved indications for this triazole antifungal agent are prophylaxis of invasive Aspergillus and Candida infections in severely immunocompromised patients, as well as treatment of oropharyngeal candidiasis. But this is a potent agent that provides broad-spectrum coverage coupled with a favorable safety profile. It performed well in a phase IIb randomized, placebo- and active-controlled, multicenter, investigator-blinded study of 218 adults with toenail onychomycosis (Br J Dermatol. 2012 Feb;166[2]:389-98).

Dr. Rosen reported serving on scientific advisory boards for Anacor, Merz, and Valeant.

SDEF and this news organization are owned by the same parent company.

[email protected]

WAIKOLOA, HAWAII – Two recent studies highlight several key points regarding topical therapy for onychomycosis: Treat it early for best results, and if concomitant tinea pedis is present, be sure to treat that, too, Dr. Theodore Rosen said at the Hawaii Dermatology Seminar.

The studies were separate secondary analyses of the pooled results of two large, double blind, vehicle-controlled, 48-week, phase III randomized trials of efinaconazole 10% topical solution (Jublia) for onychomycosis. But the same lessons probably apply to any topical antifungal, according to Dr. Rosen, professor of dermatology at Baylor College of Medicine, Houston.

Early treatment: This makes a big difference in outcome, as demonstrated in Dr. Phoebe Rich’s analysis of 1,655 patients in the phase III studies. Dr. Rich, director of the nail disorders clinic at Oregon Health and Science University, Portland, divided participants into three groups based upon disease duration: less than a year, 1-5 years, or more than 5 years. The complete cure rate was much better in the group with less than 1 year of onychomycosis, even though the extent of nail involvement of the target toenail didn’t differ significantly between the three groups (J Drugs Dermatol. 2015;Jan 14[1]:58-62).

“Now we have data: Don’t wait to treat until it has been there for 35 years. It’s easier to treat if it’s early,” Dr. Rosen commented at the seminar provided by Global Academy for Medical Education/Skin Disease Education Foundation.

When onychomycosis and tinea pedis coexist, treat both: Dr. Leon H. Kircik of Indiana University, Indianapolis, and associates reported in a poster at the Hawaii Dermatology Seminar that one in five participants in the two phase III trials had tinea pedis as well as onychomycosis, and nearly half of them were treated for their athlete’s foot using their physician’s choice of topical antifungals.

The primary endpoint in the two trials was the week 53 complete cure rate, defined as no clinical involvement of the target toenail, a negative potassium hydroxide exam, and a negative fungal culture. Among subjects with concomitant onychomycosis and tinea pedis, the onychomycosis complete cure rate was 28.2% if they received efinaconazole for their onychomycosis and got treatment for their tinea pedis, compared with 20.9% if they got efinaconazole but no treatment for their tinea pedis. The complete/almost complete cure rate was 35.5% with dual therapy versus 29.6% if they only received efinaconazole. Both differences were significant.

“Doesn’t that make logical sense? If you leave the fungus on the foot or between the toes, it’s going to say, ‘Wow, that’s steak up there on the nail. That’s real food. I’m just going to crawl back onto the nail because all my brothers up there are dead and there’s wide-open space,” Dr. Rosen explained.

He added that the reverse is also true: if a patient presents seeking treatment for athlete’s foot but also has onychomycosis, the best treatment results for the tinea pedis are obtained by also treating the nail infection.

Dr. Rosen offered a money-saving tip for effective OTC therapy for tinea pedis. Two words: Lotrimin Ultra. That’s the brand name for butenafine cream 1%, not to be confused with plain old Lotrimin, which is clotrimazole.

“Clotrimazole has been around since the dawn of man, and it’s not very effective. Many of the fungi are actually resistant to it. But they’re not resistant to butenafine, which is a very good topical antifungal now available over the counter. It costs $9 or $10 dollars for a tube the size of a baseball bat. It’s a good, effective, cheap way of treating concomitant tinea pedis,” he said.

Dr. Rosen reported serving on scientific advisory boards for Anacor, Merz, and Valeant.

SDEF and this news organization are owned by the same parent company.

[email protected]

WAIKOLOA, HAWAII – Two recent studies highlight several key points regarding topical therapy for onychomycosis: Treat it early for best results, and if concomitant tinea pedis is present, be sure to treat that, too, Dr. Theodore Rosen said at the Hawaii Dermatology Seminar.

The studies were separate secondary analyses of the pooled results of two large, double blind, vehicle-controlled, 48-week, phase III randomized trials of efinaconazole 10% topical solution (Jublia) for onychomycosis. But the same lessons probably apply to any topical antifungal, according to Dr. Rosen, professor of dermatology at Baylor College of Medicine, Houston.

Early treatment: This makes a big difference in outcome, as demonstrated in Dr. Phoebe Rich’s analysis of 1,655 patients in the phase III studies. Dr. Rich, director of the nail disorders clinic at Oregon Health and Science University, Portland, divided participants into three groups based upon disease duration: less than a year, 1-5 years, or more than 5 years. The complete cure rate was much better in the group with less than 1 year of onychomycosis, even though the extent of nail involvement of the target toenail didn’t differ significantly between the three groups (J Drugs Dermatol. 2015;Jan 14[1]:58-62).

“Now we have data: Don’t wait to treat until it has been there for 35 years. It’s easier to treat if it’s early,” Dr. Rosen commented at the seminar provided by Global Academy for Medical Education/Skin Disease Education Foundation.

When onychomycosis and tinea pedis coexist, treat both: Dr. Leon H. Kircik of Indiana University, Indianapolis, and associates reported in a poster at the Hawaii Dermatology Seminar that one in five participants in the two phase III trials had tinea pedis as well as onychomycosis, and nearly half of them were treated for their athlete’s foot using their physician’s choice of topical antifungals.

The primary endpoint in the two trials was the week 53 complete cure rate, defined as no clinical involvement of the target toenail, a negative potassium hydroxide exam, and a negative fungal culture. Among subjects with concomitant onychomycosis and tinea pedis, the onychomycosis complete cure rate was 28.2% if they received efinaconazole for their onychomycosis and got treatment for their tinea pedis, compared with 20.9% if they got efinaconazole but no treatment for their tinea pedis. The complete/almost complete cure rate was 35.5% with dual therapy versus 29.6% if they only received efinaconazole. Both differences were significant.

“Doesn’t that make logical sense? If you leave the fungus on the foot or between the toes, it’s going to say, ‘Wow, that’s steak up there on the nail. That’s real food. I’m just going to crawl back onto the nail because all my brothers up there are dead and there’s wide-open space,” Dr. Rosen explained.

He added that the reverse is also true: if a patient presents seeking treatment for athlete’s foot but also has onychomycosis, the best treatment results for the tinea pedis are obtained by also treating the nail infection.

Dr. Rosen offered a money-saving tip for effective OTC therapy for tinea pedis. Two words: Lotrimin Ultra. That’s the brand name for butenafine cream 1%, not to be confused with plain old Lotrimin, which is clotrimazole.

“Clotrimazole has been around since the dawn of man, and it’s not very effective. Many of the fungi are actually resistant to it. But they’re not resistant to butenafine, which is a very good topical antifungal now available over the counter. It costs $9 or $10 dollars for a tube the size of a baseball bat. It’s a good, effective, cheap way of treating concomitant tinea pedis,” he said.

Dr. Rosen reported serving on scientific advisory boards for Anacor, Merz, and Valeant.

SDEF and this news organization are owned by the same parent company.

[email protected]

WAIKOLOA, HAWAII – Two recent studies highlight several key points regarding topical therapy for onychomycosis: Treat it early for best results, and if concomitant tinea pedis is present, be sure to treat that, too, Dr. Theodore Rosen said at the Hawaii Dermatology Seminar.

The studies were separate secondary analyses of the pooled results of two large, double blind, vehicle-controlled, 48-week, phase III randomized trials of efinaconazole 10% topical solution (Jublia) for onychomycosis. But the same lessons probably apply to any topical antifungal, according to Dr. Rosen, professor of dermatology at Baylor College of Medicine, Houston.

Early treatment: This makes a big difference in outcome, as demonstrated in Dr. Phoebe Rich’s analysis of 1,655 patients in the phase III studies. Dr. Rich, director of the nail disorders clinic at Oregon Health and Science University, Portland, divided participants into three groups based upon disease duration: less than a year, 1-5 years, or more than 5 years. The complete cure rate was much better in the group with less than 1 year of onychomycosis, even though the extent of nail involvement of the target toenail didn’t differ significantly between the three groups (J Drugs Dermatol. 2015;Jan 14[1]:58-62).

“Now we have data: Don’t wait to treat until it has been there for 35 years. It’s easier to treat if it’s early,” Dr. Rosen commented at the seminar provided by Global Academy for Medical Education/Skin Disease Education Foundation.

When onychomycosis and tinea pedis coexist, treat both: Dr. Leon H. Kircik of Indiana University, Indianapolis, and associates reported in a poster at the Hawaii Dermatology Seminar that one in five participants in the two phase III trials had tinea pedis as well as onychomycosis, and nearly half of them were treated for their athlete’s foot using their physician’s choice of topical antifungals.

The primary endpoint in the two trials was the week 53 complete cure rate, defined as no clinical involvement of the target toenail, a negative potassium hydroxide exam, and a negative fungal culture. Among subjects with concomitant onychomycosis and tinea pedis, the onychomycosis complete cure rate was 28.2% if they received efinaconazole for their onychomycosis and got treatment for their tinea pedis, compared with 20.9% if they got efinaconazole but no treatment for their tinea pedis. The complete/almost complete cure rate was 35.5% with dual therapy versus 29.6% if they only received efinaconazole. Both differences were significant.

“Doesn’t that make logical sense? If you leave the fungus on the foot or between the toes, it’s going to say, ‘Wow, that’s steak up there on the nail. That’s real food. I’m just going to crawl back onto the nail because all my brothers up there are dead and there’s wide-open space,” Dr. Rosen explained.

He added that the reverse is also true: if a patient presents seeking treatment for athlete’s foot but also has onychomycosis, the best treatment results for the tinea pedis are obtained by also treating the nail infection.

Dr. Rosen offered a money-saving tip for effective OTC therapy for tinea pedis. Two words: Lotrimin Ultra. That’s the brand name for butenafine cream 1%, not to be confused with plain old Lotrimin, which is clotrimazole.

“Clotrimazole has been around since the dawn of man, and it’s not very effective. Many of the fungi are actually resistant to it. But they’re not resistant to butenafine, which is a very good topical antifungal now available over the counter. It costs $9 or $10 dollars for a tube the size of a baseball bat. It’s a good, effective, cheap way of treating concomitant tinea pedis,” he said.

Dr. Rosen reported serving on scientific advisory boards for Anacor, Merz, and Valeant.

SDEF and this news organization are owned by the same parent company.

[email protected]

WASHINGTON – Almost 41% of black women surveyed described hair loss that was consistent with central centrifugal cicatricial alopecia (CCCA), but only about 9% said they had been diagnosed with the condition, Dr. Yolanda Lenzy reported at the annual meeting of the American Academy of Dermatology.

In a video interview at the meeting, Dr. Lenzy of the University of Connecticut, Farmington, discussed the results of a hair survey she conducted with the Black Women’s Health Study at Boston University’s Slone Epidemiology Center. Nearly 6,000 women have completed the survey to date.

“For many years, it was thought to be due to hair styling practices,” but there are new data showing that genetics can be an important cause, she said, referring to research from South Africa indicating that CCCA can be inherited in an autosomal dominant fashion.

Dr. Lenzy, who practices dermatology in Chicopee, Mass., used a central hair loss photographic scale in the study, which also can be helpful in the office to monitor hair loss and “to quantify how much hair loss a person has … in terms of: Are they getting worse? Do they go from stage 3 to stage 5 or stage 1 to stage 3?”

[email protected]

WASHINGTON – Almost 41% of black women surveyed described hair loss that was consistent with central centrifugal cicatricial alopecia (CCCA), but only about 9% said they had been diagnosed with the condition, Dr. Yolanda Lenzy reported at the annual meeting of the American Academy of Dermatology.

In a video interview at the meeting, Dr. Lenzy of the University of Connecticut, Farmington, discussed the results of a hair survey she conducted with the Black Women’s Health Study at Boston University’s Slone Epidemiology Center. Nearly 6,000 women have completed the survey to date.

“For many years, it was thought to be due to hair styling practices,” but there are new data showing that genetics can be an important cause, she said, referring to research from South Africa indicating that CCCA can be inherited in an autosomal dominant fashion.

Dr. Lenzy, who practices dermatology in Chicopee, Mass., used a central hair loss photographic scale in the study, which also can be helpful in the office to monitor hair loss and “to quantify how much hair loss a person has … in terms of: Are they getting worse? Do they go from stage 3 to stage 5 or stage 1 to stage 3?”

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WASHINGTON – Almost 41% of black women surveyed described hair loss that was consistent with central centrifugal cicatricial alopecia (CCCA), but only about 9% said they had been diagnosed with the condition, Dr. Yolanda Lenzy reported at the annual meeting of the American Academy of Dermatology.

In a video interview at the meeting, Dr. Lenzy of the University of Connecticut, Farmington, discussed the results of a hair survey she conducted with the Black Women’s Health Study at Boston University’s Slone Epidemiology Center. Nearly 6,000 women have completed the survey to date.

“For many years, it was thought to be due to hair styling practices,” but there are new data showing that genetics can be an important cause, she said, referring to research from South Africa indicating that CCCA can be inherited in an autosomal dominant fashion.

Dr. Lenzy, who practices dermatology in Chicopee, Mass., used a central hair loss photographic scale in the study, which also can be helpful in the office to monitor hair loss and “to quantify how much hair loss a person has … in terms of: Are they getting worse? Do they go from stage 3 to stage 5 or stage 1 to stage 3?”

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WAIKOLOA, HAWAII – Two new topical treatments for nail fungal infections are more effective than previous topical therapies, but the key to successful results is picking the right onychomycosis patient, according to Dr. Theodore Rosen.

The two new agents, tavaborole and efinaconazole, “are both better than what we had previously, especially considering topical agents don’t do quite as well as oral agents do,” explained Dr. Rosen, professor of dermatology at Baylor College of Medicine, Houston.

The new topicals are “very convenient, in that it’s an easy-to-do regimen, once a day,” Dr. Rosen noted. But “they are inconvenient, in that they both have to be used about 48 weeks. So, that’s about a year’s worth of therapy.”

In an interview at the Hawaii Dermatology Seminar provided by Global Academy for Medical Education/Skin Disease Education Foundation, Dr. Rosen discussed approaches to achieving the best outcomes with the new agents, and he outlined other practical steps patients can take to prevent the return of nail fungal infections.

SDEF and this news organization are owned by the same parent company.

WAIKOLOA, HAWAII – Two new topical treatments for nail fungal infections are more effective than previous topical therapies, but the key to successful results is picking the right onychomycosis patient, according to Dr. Theodore Rosen.

The two new agents, tavaborole and efinaconazole, “are both better than what we had previously, especially considering topical agents don’t do quite as well as oral agents do,” explained Dr. Rosen, professor of dermatology at Baylor College of Medicine, Houston.

The new topicals are “very convenient, in that it’s an easy-to-do regimen, once a day,” Dr. Rosen noted. But “they are inconvenient, in that they both have to be used about 48 weeks. So, that’s about a year’s worth of therapy.”

In an interview at the Hawaii Dermatology Seminar provided by Global Academy for Medical Education/Skin Disease Education Foundation, Dr. Rosen discussed approaches to achieving the best outcomes with the new agents, and he outlined other practical steps patients can take to prevent the return of nail fungal infections.

SDEF and this news organization are owned by the same parent company.

WAIKOLOA, HAWAII – Two new topical treatments for nail fungal infections are more effective than previous topical therapies, but the key to successful results is picking the right onychomycosis patient, according to Dr. Theodore Rosen.

The two new agents, tavaborole and efinaconazole, “are both better than what we had previously, especially considering topical agents don’t do quite as well as oral agents do,” explained Dr. Rosen, professor of dermatology at Baylor College of Medicine, Houston.

The new topicals are “very convenient, in that it’s an easy-to-do regimen, once a day,” Dr. Rosen noted. But “they are inconvenient, in that they both have to be used about 48 weeks. So, that’s about a year’s worth of therapy.”

In an interview at the Hawaii Dermatology Seminar provided by Global Academy for Medical Education/Skin Disease Education Foundation, Dr. Rosen discussed approaches to achieving the best outcomes with the new agents, and he outlined other practical steps patients can take to prevent the return of nail fungal infections.

SDEF and this news organization are owned by the same parent company.

Alopecia areata’s mysterious appearances, regressions, and recurrences frustrate patients and stymie physicians, but new treatments may be around the corner.

Tofacitinib, along with other medications that target the autoimmune etiology of alopecia areata, have shown complete alopecia reversal in case studies, Dr. Maria Hordinsky said at the Hawaii Dermatology Seminar provided by Global Academy for Medical Education/Skin Disease Education Foundation. “There’s a lot of excitement bubbling up in hair disease research because of these new potential topical and oral treatments.”

Janus kinase (JAK) inhibitors, including tofacitinib, baricitinib, and ruxolitinib, have also been reported to reverse alopecia areata.

“There’s been a surge of enthusiasm for using more aggressive systemic therapies, including not only tobacitinib and ruxolitinib but also methotrexate and interleukin-2,” Dr. Hordinsky said, noting that these are still investigational uses.

The new treatment targets are welcome for physicians treating patients with alopecia areata, since currently there are no FDA-approved treatments, Dr. Hordinsky said.

A review by Dr. Hordinsky and colleague found a total of 29 trials investigating more than a dozen topical and oral treatments. Most trials were of moderate or lower quality, and most had major limitations. Treatments that were effective included topical and oral corticosteroids, as well as the sensitizing agents diphenylcyclopropenone and dinitrochlorobenzene (Am J Clin Dermatol. 2014;15:231-46).

In the absence of high-quality evidence for effective treatments, patient characteristics and preference, as well as disease activity and location, can guide treatment. In some cases, a scalp biopsy can give more information about follicle differentiation, inflammation, and the stage of the hair cycle at the time of assessment, Dr. Hordinsky said.

It’s important to set expectations for patients, so they know that treatments will take time, she said. Providers should be alert to the possibility that hair loss may also be associated with an underlying medical problem, so a thorough workup is indicated.

Patients should be given the opportunity to enroll in clinical trials, where available, and should also be directed to the National Alopecia Areata Foundation (NAAF). Their website provides information and resources for patients and families, information for local support groups, and information on a national registry.

Dr. Hordinsky reported receiving grant or research support from a number of pharmaceutical and consumer product companies in the dermatology space. She serves on the scientific advisory board of the National Alopecia Areata Foundation.

This news organization and SDEF are owned by the same parent company.

[email protected]

On Twitter @karioakes

Alopecia areata’s mysterious appearances, regressions, and recurrences frustrate patients and stymie physicians, but new treatments may be around the corner.

Tofacitinib, along with other medications that target the autoimmune etiology of alopecia areata, have shown complete alopecia reversal in case studies, Dr. Maria Hordinsky said at the Hawaii Dermatology Seminar provided by Global Academy for Medical Education/Skin Disease Education Foundation. “There’s a lot of excitement bubbling up in hair disease research because of these new potential topical and oral treatments.”

Janus kinase (JAK) inhibitors, including tofacitinib, baricitinib, and ruxolitinib, have also been reported to reverse alopecia areata.

“There’s been a surge of enthusiasm for using more aggressive systemic therapies, including not only tobacitinib and ruxolitinib but also methotrexate and interleukin-2,” Dr. Hordinsky said, noting that these are still investigational uses.

The new treatment targets are welcome for physicians treating patients with alopecia areata, since currently there are no FDA-approved treatments, Dr. Hordinsky said.

A review by Dr. Hordinsky and colleague found a total of 29 trials investigating more than a dozen topical and oral treatments. Most trials were of moderate or lower quality, and most had major limitations. Treatments that were effective included topical and oral corticosteroids, as well as the sensitizing agents diphenylcyclopropenone and dinitrochlorobenzene (Am J Clin Dermatol. 2014;15:231-46).

In the absence of high-quality evidence for effective treatments, patient characteristics and preference, as well as disease activity and location, can guide treatment. In some cases, a scalp biopsy can give more information about follicle differentiation, inflammation, and the stage of the hair cycle at the time of assessment, Dr. Hordinsky said.

It’s important to set expectations for patients, so they know that treatments will take time, she said. Providers should be alert to the possibility that hair loss may also be associated with an underlying medical problem, so a thorough workup is indicated.

Patients should be given the opportunity to enroll in clinical trials, where available, and should also be directed to the National Alopecia Areata Foundation (NAAF). Their website provides information and resources for patients and families, information for local support groups, and information on a national registry.

Dr. Hordinsky reported receiving grant or research support from a number of pharmaceutical and consumer product companies in the dermatology space. She serves on the scientific advisory board of the National Alopecia Areata Foundation.

This news organization and SDEF are owned by the same parent company.

[email protected]

On Twitter @karioakes

Alopecia areata’s mysterious appearances, regressions, and recurrences frustrate patients and stymie physicians, but new treatments may be around the corner.

Tofacitinib, along with other medications that target the autoimmune etiology of alopecia areata, have shown complete alopecia reversal in case studies, Dr. Maria Hordinsky said at the Hawaii Dermatology Seminar provided by Global Academy for Medical Education/Skin Disease Education Foundation. “There’s a lot of excitement bubbling up in hair disease research because of these new potential topical and oral treatments.”

Janus kinase (JAK) inhibitors, including tofacitinib, baricitinib, and ruxolitinib, have also been reported to reverse alopecia areata.

“There’s been a surge of enthusiasm for using more aggressive systemic therapies, including not only tobacitinib and ruxolitinib but also methotrexate and interleukin-2,” Dr. Hordinsky said, noting that these are still investigational uses.

The new treatment targets are welcome for physicians treating patients with alopecia areata, since currently there are no FDA-approved treatments, Dr. Hordinsky said.

A review by Dr. Hordinsky and colleague found a total of 29 trials investigating more than a dozen topical and oral treatments. Most trials were of moderate or lower quality, and most had major limitations. Treatments that were effective included topical and oral corticosteroids, as well as the sensitizing agents diphenylcyclopropenone and dinitrochlorobenzene (Am J Clin Dermatol. 2014;15:231-46).

In the absence of high-quality evidence for effective treatments, patient characteristics and preference, as well as disease activity and location, can guide treatment. In some cases, a scalp biopsy can give more information about follicle differentiation, inflammation, and the stage of the hair cycle at the time of assessment, Dr. Hordinsky said.

It’s important to set expectations for patients, so they know that treatments will take time, she said. Providers should be alert to the possibility that hair loss may also be associated with an underlying medical problem, so a thorough workup is indicated.

Patients should be given the opportunity to enroll in clinical trials, where available, and should also be directed to the National Alopecia Areata Foundation (NAAF). Their website provides information and resources for patients and families, information for local support groups, and information on a national registry.

Dr. Hordinsky reported receiving grant or research support from a number of pharmaceutical and consumer product companies in the dermatology space. She serves on the scientific advisory board of the National Alopecia Areata Foundation.

This news organization and SDEF are owned by the same parent company.

[email protected]

On Twitter @karioakes