Article

A shave biopsy of the lesion was performed and it confirmed the diagnosis of chondrodermatitis nodularis helicis (CNH).

CNH is an inflammatory process that most commonly occurs on the helix of the ear but can also occur on the antihelix and, rarely, on other areas of the ear. It generally manifests as a firm nodule with surrounding erythema that may be painful only when pressure is applied. Patients may describe bleeding, ulceration, and exudate. They will usually report discomfort from sleeping on the affected side.

The pathogenesis of CNH is poorly understood but is thought to be related to vasculitis and inflammation from prolonged pressure to the affected ear during sleep or from devices that are worn in or around the ear (eg, hearing aids, headphones). Other factors such as actinic damage or ear trauma have also been described. Histopathologic studies have identified arteriolar narrowing with ischemic changes and necrosis of cartilage causing localized inflammation.¹

The differential diagnosis for this lesion includes nonmelanoma skin cancer, as well as tophaceous gout and seborrheic keratosis.

There are multiple conservative treatment options. One option is to relieve pressure by sleeping on the unaffected side or using commercially available pillows with a cutout or window where the affected ear can rest. Pharmacologic treatments include topical nitroglycerin¹ and intralesional collagen or corticosteroid injections. If previous treatments are unsuccessful, consider surgical excision of the affected tissue and curettage of the underlying abnormal cartilage. Recurrence is possible with both conservative and surgical treatment.

This patient was counseled on the benign nature of her biopsy findings and treatment options were discussed. She elected to proceed with pressure-relieving measures when sleeping and planned to follow up if there was no improvement.

‌

Image courtesy of Marion Cook, MD, First Choice Community Healthcare, Albuquerque, New Mexico. Text courtesy of Spenser Squire, MD, and Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, University of New Mexico School of Medicine, Albuquerque.

A shave biopsy of the lesion was performed and it confirmed the diagnosis of chondrodermatitis nodularis helicis (CNH).

CNH is an inflammatory process that most commonly occurs on the helix of the ear but can also occur on the antihelix and, rarely, on other areas of the ear. It generally manifests as a firm nodule with surrounding erythema that may be painful only when pressure is applied. Patients may describe bleeding, ulceration, and exudate. They will usually report discomfort from sleeping on the affected side.

The pathogenesis of CNH is poorly understood but is thought to be related to vasculitis and inflammation from prolonged pressure to the affected ear during sleep or from devices that are worn in or around the ear (eg, hearing aids, headphones). Other factors such as actinic damage or ear trauma have also been described. Histopathologic studies have identified arteriolar narrowing with ischemic changes and necrosis of cartilage causing localized inflammation.¹

The differential diagnosis for this lesion includes nonmelanoma skin cancer, as well as tophaceous gout and seborrheic keratosis.

There are multiple conservative treatment options. One option is to relieve pressure by sleeping on the unaffected side or using commercially available pillows with a cutout or window where the affected ear can rest. Pharmacologic treatments include topical nitroglycerin¹ and intralesional collagen or corticosteroid injections. If previous treatments are unsuccessful, consider surgical excision of the affected tissue and curettage of the underlying abnormal cartilage. Recurrence is possible with both conservative and surgical treatment.

This patient was counseled on the benign nature of her biopsy findings and treatment options were discussed. She elected to proceed with pressure-relieving measures when sleeping and planned to follow up if there was no improvement.

‌

Image courtesy of Marion Cook, MD, First Choice Community Healthcare, Albuquerque, New Mexico. Text courtesy of Spenser Squire, MD, and Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, University of New Mexico School of Medicine, Albuquerque.

A shave biopsy of the lesion was performed and it confirmed the diagnosis of chondrodermatitis nodularis helicis (CNH).

CNH is an inflammatory process that most commonly occurs on the helix of the ear but can also occur on the antihelix and, rarely, on other areas of the ear. It generally manifests as a firm nodule with surrounding erythema that may be painful only when pressure is applied. Patients may describe bleeding, ulceration, and exudate. They will usually report discomfort from sleeping on the affected side.

The pathogenesis of CNH is poorly understood but is thought to be related to vasculitis and inflammation from prolonged pressure to the affected ear during sleep or from devices that are worn in or around the ear (eg, hearing aids, headphones). Other factors such as actinic damage or ear trauma have also been described. Histopathologic studies have identified arteriolar narrowing with ischemic changes and necrosis of cartilage causing localized inflammation.¹

The differential diagnosis for this lesion includes nonmelanoma skin cancer, as well as tophaceous gout and seborrheic keratosis.

There are multiple conservative treatment options. One option is to relieve pressure by sleeping on the unaffected side or using commercially available pillows with a cutout or window where the affected ear can rest. Pharmacologic treatments include topical nitroglycerin¹ and intralesional collagen or corticosteroid injections. If previous treatments are unsuccessful, consider surgical excision of the affected tissue and curettage of the underlying abnormal cartilage. Recurrence is possible with both conservative and surgical treatment.

This patient was counseled on the benign nature of her biopsy findings and treatment options were discussed. She elected to proceed with pressure-relieving measures when sleeping and planned to follow up if there was no improvement.

‌

Image courtesy of Marion Cook, MD, First Choice Community Healthcare, Albuquerque, New Mexico. Text courtesy of Spenser Squire, MD, and Daniel Stulberg, MD, FAAFP, Department of Family and Community Medicine, University of New Mexico School of Medicine, Albuquerque.

Click to view more from Cancer Data Trends 2022.

Click to view more from Cancer Data Trends 2022.

Click to view more from Cancer Data Trends 2022.

Isotretinoin is one of the most highly regulated dermatologic medications on the market. The main reason for regulation through the US Food and Drug Administration (FDA)–managed iPLEDGE Risk Evaluation and Mitigation Strategy (REMS) is to minimize the drug’s teratogenic potential, as isotretinoin can cause profound birth defects. The program originally categorized patients into 1 of 3 categories: (1) females of reproductive potential, (2) females not of reproductive potential, and (3) males. Unless the patient commits to abstinence, the program required female patients of childbearing potential to be on 2 forms of birth control and undergo regular pregnancy testing before obtaining refills. Over the last few years, the American Academy of Dermatology Association (AADA) has been advocating for changes to the iPLEDGE system. Proposed changes have included decreasing attestation frequency for patients who cannot get pregnant, increasing contraception counseling and options, and changing enrollment guidelines to encompass all gender and sexual minorities. As of December 13, 2021, the iPLEDGE system changed enrollment categories to reflect the AADA’s wishes and rolled out gender-neutral categories for enrollment in iPLEDGE. This change will simplify and enhance patients’ experience when starting isotretinoin.

Developing Inclusive iPLEDGE Categories

In recent years, dermatologists and patients have viewed these strict gender-based categories as limiting and problematic, especially for their transgender patients and female patients of childbearing potential who exclusively engage in intercourse with cisgender females. The United States has more than 10 million LGBTQIA+ citizens and an estimated 1.4 million adults who identify as transgender individuals, rendering the previously established gender-binary iPLEDGE categories outdated.^1,2

As a result, over the last few years, dermatologists, LGBTQIA+ allies, and patients have urged the FDA to create a gender-neutral registration process for iPLEDGE. With support from the AADA, the new modifications were approved for implementation and include 2 risk categories: (1) people who can get pregnant and (2) people who cannot get pregnant.³

As exciting as these changes are for the future of dermatologic practice, the actual transition to the new iPLEDGE system was described as a “failure, chaotic, and a disaster” due to additional changes made at the same time.⁴ The iPLEDGE system was switched to a new website administered by a different vendor and required providers to confirm each patient online by December 13, 2021. In addition, the new system required pharmacists to obtain risk management authorization via the iPLEDGE REMS website or by calling the iPLEDGE REMS center before dispensing isotretinoin. This overhaul did not work as planned, as the new website was constantly down and it was nearly impossible to reach a contact over the telephone. The complications resulted in major disruptions and delayed prescriptions for thousands of patients nationwide as well as a great disruption in workflow for physicians and pharmacists. The AADA subsequently met with the Isotretinoin Products Manufacturers Group to create workable solutions for these issues.

On January 14, 2022, the FDA posted updates regarding access to the iPLEDGE system. They have worked with the Isotretinoin Products Manufacturers Group to create workable solutions for patients and physicians while transferring the patients’ information to the new database. Their solution includes allowing physicians to send patients login links through their email to access their account instead of waiting for the call center. The majority of iPLEDGE users now have access to their accounts without issues, and the gender-neutral guidelines have been in place since the original change.

Impact of iPLEDGE Categories on Transgender Patients

These changes specifically will improve the experience of transgender men and cisgender women who are at no risk for pregnancy and could be subjected to monthly pregnancy testing when it is not medically necessary.

Consider the following patient scenario. A transgender man presents to your dermatology office seeking treatment of severe nodulocystic acne. He was placed on hormonal replacement therapy with exogenous testosterone—injections, oral pills, topical gel, topical patches, or subdermal pellets—to achieve secondary sex characteristics and promote gender congruence. The patient mentions he has been amenorrheic for several months now. He has tried many topical acne treatments as well as oral antibiotics without much benefit and is now interested in enrolling in iPLEDGE to obtain isotretinoin. With the prior iPLEDGE registration packets, how would this transgender man be classified? As a female with childbearing potential due to his retained ovaries and uterus? What if he did not endorse engaging in sexual intercourse that could result in pregnancy?

Transgender patients have unique and unmet needs that often are overlooked and prevent them from equitable, gender-affirming health care. For example, in a prospective study following 20 transgender men starting hormone replacement therapy, the percentage of patients with facial acne increased from 35% to 82% after 6 months of therapy.⁵ In addition, the increased psychosocial burden of acne may be especially difficult in these patients, as they already report higher rates of depression and suicidal ideation compared with their heterosexual cisgender peers.⁴ Further, the primary patient populations receiving isotretinoin typically are adolescents and young adults who are undergoing major physical, mental, and hormonal changes. Self-discovery and self-actualization develop over time, and our role as physicians is to advocate for all aspects of our patients’ health and eliminate barriers to optimal care.

Inclusive Language in iPLEDGE Categories

It is important to streamline access to care for all patients, and gender-affirming, culturally sensitive language is essential to building trust and understanding between patients and providers. Howa Yeung, MD, MSc, a dermatologist at Emory University (Atlanta, Georgia) who advocated for gender-neutral iPLEDGE registration, welcomes the change and stated it “will make my job easier. I no longer have to struggle between respecting the patient’s gender identity and providing medically necessary care for patients with severe acne.”³

Sanchez et al⁶ provided a list of structured questions providers can ask their patients to assess their risk regarding pregnancy: (1) Do you have a uterus and/or ovaries?, (2) Are you engaging in sexual intercourse with a person who has a penis?, and (3) If yes to these questions, what form(s) of birth control are you using? Providers should preface these questions with the following statement: “It is important that I ask these questions to assess your risk for becoming pregnant on this medication because isotretinoin can cause very serious birth defects.” It is important to review these questions and practice asking them so residents can operate from the same place of openness and understanding when caring for their patients.

Final Thoughts

The landscape of isotretinoin prescribing currently is changing on a day-to-day basis. As residents, it is important we stay up to date with the changes regarding our regularly dispensed medications. The main modification made to the iPLEDGE REMS system was switching the risk categories from 3 (females who can get pregnant, females who cannot get pregnant, males) to 2 (people who can get pregnant, people who cannot get pregnant). This change will make registration for iPLEDGE less complex and more inclusive for all patients. It is important for residents to stay at the forefront of these patient health issues and barriers to equal care, and this change represents a step in the right direction.

Isotretinoin is one of the most highly regulated dermatologic medications on the market. The main reason for regulation through the US Food and Drug Administration (FDA)–managed iPLEDGE Risk Evaluation and Mitigation Strategy (REMS) is to minimize the drug’s teratogenic potential, as isotretinoin can cause profound birth defects. The program originally categorized patients into 1 of 3 categories: (1) females of reproductive potential, (2) females not of reproductive potential, and (3) males. Unless the patient commits to abstinence, the program required female patients of childbearing potential to be on 2 forms of birth control and undergo regular pregnancy testing before obtaining refills. Over the last few years, the American Academy of Dermatology Association (AADA) has been advocating for changes to the iPLEDGE system. Proposed changes have included decreasing attestation frequency for patients who cannot get pregnant, increasing contraception counseling and options, and changing enrollment guidelines to encompass all gender and sexual minorities. As of December 13, 2021, the iPLEDGE system changed enrollment categories to reflect the AADA’s wishes and rolled out gender-neutral categories for enrollment in iPLEDGE. This change will simplify and enhance patients’ experience when starting isotretinoin.

Developing Inclusive iPLEDGE Categories

In recent years, dermatologists and patients have viewed these strict gender-based categories as limiting and problematic, especially for their transgender patients and female patients of childbearing potential who exclusively engage in intercourse with cisgender females. The United States has more than 10 million LGBTQIA+ citizens and an estimated 1.4 million adults who identify as transgender individuals, rendering the previously established gender-binary iPLEDGE categories outdated.^1,2

As a result, over the last few years, dermatologists, LGBTQIA+ allies, and patients have urged the FDA to create a gender-neutral registration process for iPLEDGE. With support from the AADA, the new modifications were approved for implementation and include 2 risk categories: (1) people who can get pregnant and (2) people who cannot get pregnant.³

As exciting as these changes are for the future of dermatologic practice, the actual transition to the new iPLEDGE system was described as a “failure, chaotic, and a disaster” due to additional changes made at the same time.⁴ The iPLEDGE system was switched to a new website administered by a different vendor and required providers to confirm each patient online by December 13, 2021. In addition, the new system required pharmacists to obtain risk management authorization via the iPLEDGE REMS website or by calling the iPLEDGE REMS center before dispensing isotretinoin. This overhaul did not work as planned, as the new website was constantly down and it was nearly impossible to reach a contact over the telephone. The complications resulted in major disruptions and delayed prescriptions for thousands of patients nationwide as well as a great disruption in workflow for physicians and pharmacists. The AADA subsequently met with the Isotretinoin Products Manufacturers Group to create workable solutions for these issues.

On January 14, 2022, the FDA posted updates regarding access to the iPLEDGE system. They have worked with the Isotretinoin Products Manufacturers Group to create workable solutions for patients and physicians while transferring the patients’ information to the new database. Their solution includes allowing physicians to send patients login links through their email to access their account instead of waiting for the call center. The majority of iPLEDGE users now have access to their accounts without issues, and the gender-neutral guidelines have been in place since the original change.

Impact of iPLEDGE Categories on Transgender Patients

These changes specifically will improve the experience of transgender men and cisgender women who are at no risk for pregnancy and could be subjected to monthly pregnancy testing when it is not medically necessary.

Consider the following patient scenario. A transgender man presents to your dermatology office seeking treatment of severe nodulocystic acne. He was placed on hormonal replacement therapy with exogenous testosterone—injections, oral pills, topical gel, topical patches, or subdermal pellets—to achieve secondary sex characteristics and promote gender congruence. The patient mentions he has been amenorrheic for several months now. He has tried many topical acne treatments as well as oral antibiotics without much benefit and is now interested in enrolling in iPLEDGE to obtain isotretinoin. With the prior iPLEDGE registration packets, how would this transgender man be classified? As a female with childbearing potential due to his retained ovaries and uterus? What if he did not endorse engaging in sexual intercourse that could result in pregnancy?

Transgender patients have unique and unmet needs that often are overlooked and prevent them from equitable, gender-affirming health care. For example, in a prospective study following 20 transgender men starting hormone replacement therapy, the percentage of patients with facial acne increased from 35% to 82% after 6 months of therapy.⁵ In addition, the increased psychosocial burden of acne may be especially difficult in these patients, as they already report higher rates of depression and suicidal ideation compared with their heterosexual cisgender peers.⁴ Further, the primary patient populations receiving isotretinoin typically are adolescents and young adults who are undergoing major physical, mental, and hormonal changes. Self-discovery and self-actualization develop over time, and our role as physicians is to advocate for all aspects of our patients’ health and eliminate barriers to optimal care.

Inclusive Language in iPLEDGE Categories

It is important to streamline access to care for all patients, and gender-affirming, culturally sensitive language is essential to building trust and understanding between patients and providers. Howa Yeung, MD, MSc, a dermatologist at Emory University (Atlanta, Georgia) who advocated for gender-neutral iPLEDGE registration, welcomes the change and stated it “will make my job easier. I no longer have to struggle between respecting the patient’s gender identity and providing medically necessary care for patients with severe acne.”³

Sanchez et al⁶ provided a list of structured questions providers can ask their patients to assess their risk regarding pregnancy: (1) Do you have a uterus and/or ovaries?, (2) Are you engaging in sexual intercourse with a person who has a penis?, and (3) If yes to these questions, what form(s) of birth control are you using? Providers should preface these questions with the following statement: “It is important that I ask these questions to assess your risk for becoming pregnant on this medication because isotretinoin can cause very serious birth defects.” It is important to review these questions and practice asking them so residents can operate from the same place of openness and understanding when caring for their patients.

Final Thoughts

The landscape of isotretinoin prescribing currently is changing on a day-to-day basis. As residents, it is important we stay up to date with the changes regarding our regularly dispensed medications. The main modification made to the iPLEDGE REMS system was switching the risk categories from 3 (females who can get pregnant, females who cannot get pregnant, males) to 2 (people who can get pregnant, people who cannot get pregnant). This change will make registration for iPLEDGE less complex and more inclusive for all patients. It is important for residents to stay at the forefront of these patient health issues and barriers to equal care, and this change represents a step in the right direction.

Isotretinoin is one of the most highly regulated dermatologic medications on the market. The main reason for regulation through the US Food and Drug Administration (FDA)–managed iPLEDGE Risk Evaluation and Mitigation Strategy (REMS) is to minimize the drug’s teratogenic potential, as isotretinoin can cause profound birth defects. The program originally categorized patients into 1 of 3 categories: (1) females of reproductive potential, (2) females not of reproductive potential, and (3) males. Unless the patient commits to abstinence, the program required female patients of childbearing potential to be on 2 forms of birth control and undergo regular pregnancy testing before obtaining refills. Over the last few years, the American Academy of Dermatology Association (AADA) has been advocating for changes to the iPLEDGE system. Proposed changes have included decreasing attestation frequency for patients who cannot get pregnant, increasing contraception counseling and options, and changing enrollment guidelines to encompass all gender and sexual minorities. As of December 13, 2021, the iPLEDGE system changed enrollment categories to reflect the AADA’s wishes and rolled out gender-neutral categories for enrollment in iPLEDGE. This change will simplify and enhance patients’ experience when starting isotretinoin.

Developing Inclusive iPLEDGE Categories

In recent years, dermatologists and patients have viewed these strict gender-based categories as limiting and problematic, especially for their transgender patients and female patients of childbearing potential who exclusively engage in intercourse with cisgender females. The United States has more than 10 million LGBTQIA+ citizens and an estimated 1.4 million adults who identify as transgender individuals, rendering the previously established gender-binary iPLEDGE categories outdated.^1,2

As a result, over the last few years, dermatologists, LGBTQIA+ allies, and patients have urged the FDA to create a gender-neutral registration process for iPLEDGE. With support from the AADA, the new modifications were approved for implementation and include 2 risk categories: (1) people who can get pregnant and (2) people who cannot get pregnant.³

As exciting as these changes are for the future of dermatologic practice, the actual transition to the new iPLEDGE system was described as a “failure, chaotic, and a disaster” due to additional changes made at the same time.⁴ The iPLEDGE system was switched to a new website administered by a different vendor and required providers to confirm each patient online by December 13, 2021. In addition, the new system required pharmacists to obtain risk management authorization via the iPLEDGE REMS website or by calling the iPLEDGE REMS center before dispensing isotretinoin. This overhaul did not work as planned, as the new website was constantly down and it was nearly impossible to reach a contact over the telephone. The complications resulted in major disruptions and delayed prescriptions for thousands of patients nationwide as well as a great disruption in workflow for physicians and pharmacists. The AADA subsequently met with the Isotretinoin Products Manufacturers Group to create workable solutions for these issues.

On January 14, 2022, the FDA posted updates regarding access to the iPLEDGE system. They have worked with the Isotretinoin Products Manufacturers Group to create workable solutions for patients and physicians while transferring the patients’ information to the new database. Their solution includes allowing physicians to send patients login links through their email to access their account instead of waiting for the call center. The majority of iPLEDGE users now have access to their accounts without issues, and the gender-neutral guidelines have been in place since the original change.

Impact of iPLEDGE Categories on Transgender Patients

These changes specifically will improve the experience of transgender men and cisgender women who are at no risk for pregnancy and could be subjected to monthly pregnancy testing when it is not medically necessary.

Consider the following patient scenario. A transgender man presents to your dermatology office seeking treatment of severe nodulocystic acne. He was placed on hormonal replacement therapy with exogenous testosterone—injections, oral pills, topical gel, topical patches, or subdermal pellets—to achieve secondary sex characteristics and promote gender congruence. The patient mentions he has been amenorrheic for several months now. He has tried many topical acne treatments as well as oral antibiotics without much benefit and is now interested in enrolling in iPLEDGE to obtain isotretinoin. With the prior iPLEDGE registration packets, how would this transgender man be classified? As a female with childbearing potential due to his retained ovaries and uterus? What if he did not endorse engaging in sexual intercourse that could result in pregnancy?

Transgender patients have unique and unmet needs that often are overlooked and prevent them from equitable, gender-affirming health care. For example, in a prospective study following 20 transgender men starting hormone replacement therapy, the percentage of patients with facial acne increased from 35% to 82% after 6 months of therapy.⁵ In addition, the increased psychosocial burden of acne may be especially difficult in these patients, as they already report higher rates of depression and suicidal ideation compared with their heterosexual cisgender peers.⁴ Further, the primary patient populations receiving isotretinoin typically are adolescents and young adults who are undergoing major physical, mental, and hormonal changes. Self-discovery and self-actualization develop over time, and our role as physicians is to advocate for all aspects of our patients’ health and eliminate barriers to optimal care.

Inclusive Language in iPLEDGE Categories

It is important to streamline access to care for all patients, and gender-affirming, culturally sensitive language is essential to building trust and understanding between patients and providers. Howa Yeung, MD, MSc, a dermatologist at Emory University (Atlanta, Georgia) who advocated for gender-neutral iPLEDGE registration, welcomes the change and stated it “will make my job easier. I no longer have to struggle between respecting the patient’s gender identity and providing medically necessary care for patients with severe acne.”³

Sanchez et al⁶ provided a list of structured questions providers can ask their patients to assess their risk regarding pregnancy: (1) Do you have a uterus and/or ovaries?, (2) Are you engaging in sexual intercourse with a person who has a penis?, and (3) If yes to these questions, what form(s) of birth control are you using? Providers should preface these questions with the following statement: “It is important that I ask these questions to assess your risk for becoming pregnant on this medication because isotretinoin can cause very serious birth defects.” It is important to review these questions and practice asking them so residents can operate from the same place of openness and understanding when caring for their patients.

Final Thoughts

The landscape of isotretinoin prescribing currently is changing on a day-to-day basis. As residents, it is important we stay up to date with the changes regarding our regularly dispensed medications. The main modification made to the iPLEDGE REMS system was switching the risk categories from 3 (females who can get pregnant, females who cannot get pregnant, males) to 2 (people who can get pregnant, people who cannot get pregnant). This change will make registration for iPLEDGE less complex and more inclusive for all patients. It is important for residents to stay at the forefront of these patient health issues and barriers to equal care, and this change represents a step in the right direction.

The Diagnosis: Acquired Lymphangioma Circumscriptum

A skin biopsy of the plaque on the right labium majus showed a proliferation of well-formed, dilated lymphatic vessels lined by benign-appearing endothelial cells in the papillary dermis (Figure). These findings were consistent with a diagnosis of acquired lymphangioma circumscriptum (ALC) in the setting of severe hidradenitis suppurativa (HS).

Image courtesy of Alicia Schnebelen, MD (Dallas, Texas).

Acquired lymphangioma circumscriptum (also known as acquired lymphangiectasia or secondary lymphangioma¹) is a rare skin finding resulting from chronic lymphatic obstruction that leads to dilated lymphatic vessels within the dermis.^2,3 There also is a distinct congenital form of lymphangioma circumscriptum caused by lymphatic malformations present at birth.^2,4 Acquired lymphangioma circumscriptum of the vulva is a rare phenomenon.³ Identified causes include radiation or surgery for carcinoma, solid gynecologic tumors, lymphadenectomy, Crohn disease, and tuberculosis and other infections, all of which can disrupt normal lymphatics to cause ALC.^2-4 Hidradenitis suppurativa is not a widely recognized cause of ALC; however, this phenomenon is reported in the literature. A long-standing history of severe HS complicated by lymphedema seems to precede the development of ALC in the reported cases, as in our patient.^5-7

Acquired lymphangioma circumscriptum of the vulva can appear in women of all ages as frog spawn or cobblestone papules or vesicles, sometimes with a hyperkeratotic or verrucous appearance.^2,4 Associated symptoms include serous drainage, edema, pruritus, and discomfort. The lesions may become eroded, which can predispose patients to secondary infections.^1,2 Acquired lymphangioma circumscriptum of the vulva can be difficult to diagnose, as the time interval between the initial cause and the appearance of skin findings can be years, leading to the misdiagnosis of ALC as other similar-appearing genital skin conditions such as squamous cell carcinoma or condyloma.^4,8 When misidentified as an infection, diagnosis can lead to substantial distress, abstinence from sexual activity, and unnecessary and painful treatments.

Skin biopsy is helpful in distinguishing ALC from other differential diagnoses such as condylomata acuminata, squamous cell carcinoma, and condyloma lata. Histopathology in ALC is notable for dilated lymphatic vessels filled with hypocellular fluid and lined with endothelial cells in the superficial dermis; the epidermis can appear hyperplastic, hyperkeratotic, or eroded.^3-5,9 These lymphatic vessels stain positively for CD31 and D2-40, markers for endothelial cells and lymphatic endothelium, respectively, and negative for CD34, a marker for vascular endothelium.^3,4,9 Features suggestive of condylomata acuminata such as rounded parakeratosis, hypergranulosis, and vacuolated keratinocytes⁹ are not present. The giant condyloma of Buschke-Löwenstein, a clinical variant of verrucous squamous cell carcinoma, also can present as a warty ulcerated papule or plaque in the genital region, but the characteristic rounded eosinophilic keratinocytes pushing down into the dermis⁹ are not seen in ALC. Secondary syphilis is associated with condyloma lata, which are verrucous or fleshy-appearing papules often coalescing into plaques located in the anogenital region. Pathologic features of secondary syphilis include vacuolar interface dermatitis and acanthosis with long slender rete ridges.⁹ Squamous cell carcinoma, which can arise from inflammation associated with long-standing HS, must be ruled out, as it is associated with a high risk of mortality in patients with HS.¹⁰

It is noteworthy to recognize the various, often confusing nomenclature used to describe cutaneous lymphatic conditions. The terms acquired lymphangioma circumscriptum, secondary lymphangioma, and lymphangiectasia are used interchangeably to describe dilated lymphatic vessels in the skin.¹ The term atypical vascular lesion refers to lymphectasias of the skin of the breast due to prior radiation therapy most often used in the treatment of breast carcinoma; clinically, these present as red-brown or flesh-colored papules or telangiectatic plaques on the breast.^11,12 Lymphedema also may occur alongside atypical vascular lesions, as prior radiation or surgical lymph node dissection can predispose patients to impaired lymphatic drainage.¹³ The lymphatic histopathologic subtype of atypical vascular lesions may appear similar to ALC; however, the vascular subtype will demonstrate collections of capillary-sized vessels and extravasated erythrocytes.^11,12 Unlike ALC, the benign nature of atypical vascular lesions has been questioned, as they may be associated with a small risk for progression to angiosarcoma.^11-13 It also is important to distinguish ALC from lymphangiomatosis, a generalized lymphatic anomaly that is characterized by extensive lymphatic malformations involving numerous internal organs, including the lungs and gastrointestinal tract. This condition is associated with notable morbidity and mortality.¹³

Although the suffix of the term lymphangioma suggests a neoplastic process, ALC is not a neoplasm and can be managed expectantly in many cases.^2,3,8 However, due to cosmetic appearance, pain, discomfort, and recurrent bacterial superinfections, many patients pursue treatment. Treatment options for ALC include sclerotherapy, electrocautery, radiofrequency or carbon dioxide laser ablation, and excision, though recurrence can arise.^3-5,7,8 Our patient elected to manage her asymptomatic ALC expectantly.

The Diagnosis: Acquired Lymphangioma Circumscriptum

A skin biopsy of the plaque on the right labium majus showed a proliferation of well-formed, dilated lymphatic vessels lined by benign-appearing endothelial cells in the papillary dermis (Figure). These findings were consistent with a diagnosis of acquired lymphangioma circumscriptum (ALC) in the setting of severe hidradenitis suppurativa (HS).

Image courtesy of Alicia Schnebelen, MD (Dallas, Texas).

Acquired lymphangioma circumscriptum (also known as acquired lymphangiectasia or secondary lymphangioma¹) is a rare skin finding resulting from chronic lymphatic obstruction that leads to dilated lymphatic vessels within the dermis.^2,3 There also is a distinct congenital form of lymphangioma circumscriptum caused by lymphatic malformations present at birth.^2,4 Acquired lymphangioma circumscriptum of the vulva is a rare phenomenon.³ Identified causes include radiation or surgery for carcinoma, solid gynecologic tumors, lymphadenectomy, Crohn disease, and tuberculosis and other infections, all of which can disrupt normal lymphatics to cause ALC.^2-4 Hidradenitis suppurativa is not a widely recognized cause of ALC; however, this phenomenon is reported in the literature. A long-standing history of severe HS complicated by lymphedema seems to precede the development of ALC in the reported cases, as in our patient.^5-7

Acquired lymphangioma circumscriptum of the vulva can appear in women of all ages as frog spawn or cobblestone papules or vesicles, sometimes with a hyperkeratotic or verrucous appearance.^2,4 Associated symptoms include serous drainage, edema, pruritus, and discomfort. The lesions may become eroded, which can predispose patients to secondary infections.^1,2 Acquired lymphangioma circumscriptum of the vulva can be difficult to diagnose, as the time interval between the initial cause and the appearance of skin findings can be years, leading to the misdiagnosis of ALC as other similar-appearing genital skin conditions such as squamous cell carcinoma or condyloma.^4,8 When misidentified as an infection, diagnosis can lead to substantial distress, abstinence from sexual activity, and unnecessary and painful treatments.

Skin biopsy is helpful in distinguishing ALC from other differential diagnoses such as condylomata acuminata, squamous cell carcinoma, and condyloma lata. Histopathology in ALC is notable for dilated lymphatic vessels filled with hypocellular fluid and lined with endothelial cells in the superficial dermis; the epidermis can appear hyperplastic, hyperkeratotic, or eroded.^3-5,9 These lymphatic vessels stain positively for CD31 and D2-40, markers for endothelial cells and lymphatic endothelium, respectively, and negative for CD34, a marker for vascular endothelium.^3,4,9 Features suggestive of condylomata acuminata such as rounded parakeratosis, hypergranulosis, and vacuolated keratinocytes⁹ are not present. The giant condyloma of Buschke-Löwenstein, a clinical variant of verrucous squamous cell carcinoma, also can present as a warty ulcerated papule or plaque in the genital region, but the characteristic rounded eosinophilic keratinocytes pushing down into the dermis⁹ are not seen in ALC. Secondary syphilis is associated with condyloma lata, which are verrucous or fleshy-appearing papules often coalescing into plaques located in the anogenital region. Pathologic features of secondary syphilis include vacuolar interface dermatitis and acanthosis with long slender rete ridges.⁹ Squamous cell carcinoma, which can arise from inflammation associated with long-standing HS, must be ruled out, as it is associated with a high risk of mortality in patients with HS.¹⁰

It is noteworthy to recognize the various, often confusing nomenclature used to describe cutaneous lymphatic conditions. The terms acquired lymphangioma circumscriptum, secondary lymphangioma, and lymphangiectasia are used interchangeably to describe dilated lymphatic vessels in the skin.¹ The term atypical vascular lesion refers to lymphectasias of the skin of the breast due to prior radiation therapy most often used in the treatment of breast carcinoma; clinically, these present as red-brown or flesh-colored papules or telangiectatic plaques on the breast.^11,12 Lymphedema also may occur alongside atypical vascular lesions, as prior radiation or surgical lymph node dissection can predispose patients to impaired lymphatic drainage.¹³ The lymphatic histopathologic subtype of atypical vascular lesions may appear similar to ALC; however, the vascular subtype will demonstrate collections of capillary-sized vessels and extravasated erythrocytes.^11,12 Unlike ALC, the benign nature of atypical vascular lesions has been questioned, as they may be associated with a small risk for progression to angiosarcoma.^11-13 It also is important to distinguish ALC from lymphangiomatosis, a generalized lymphatic anomaly that is characterized by extensive lymphatic malformations involving numerous internal organs, including the lungs and gastrointestinal tract. This condition is associated with notable morbidity and mortality.¹³

Although the suffix of the term lymphangioma suggests a neoplastic process, ALC is not a neoplasm and can be managed expectantly in many cases.^2,3,8 However, due to cosmetic appearance, pain, discomfort, and recurrent bacterial superinfections, many patients pursue treatment. Treatment options for ALC include sclerotherapy, electrocautery, radiofrequency or carbon dioxide laser ablation, and excision, though recurrence can arise.^3-5,7,8 Our patient elected to manage her asymptomatic ALC expectantly.

The Diagnosis: Acquired Lymphangioma Circumscriptum

A skin biopsy of the plaque on the right labium majus showed a proliferation of well-formed, dilated lymphatic vessels lined by benign-appearing endothelial cells in the papillary dermis (Figure). These findings were consistent with a diagnosis of acquired lymphangioma circumscriptum (ALC) in the setting of severe hidradenitis suppurativa (HS).

Image courtesy of Alicia Schnebelen, MD (Dallas, Texas).

Acquired lymphangioma circumscriptum (also known as acquired lymphangiectasia or secondary lymphangioma¹) is a rare skin finding resulting from chronic lymphatic obstruction that leads to dilated lymphatic vessels within the dermis.^2,3 There also is a distinct congenital form of lymphangioma circumscriptum caused by lymphatic malformations present at birth.^2,4 Acquired lymphangioma circumscriptum of the vulva is a rare phenomenon.³ Identified causes include radiation or surgery for carcinoma, solid gynecologic tumors, lymphadenectomy, Crohn disease, and tuberculosis and other infections, all of which can disrupt normal lymphatics to cause ALC.^2-4 Hidradenitis suppurativa is not a widely recognized cause of ALC; however, this phenomenon is reported in the literature. A long-standing history of severe HS complicated by lymphedema seems to precede the development of ALC in the reported cases, as in our patient.^5-7

Acquired lymphangioma circumscriptum of the vulva can appear in women of all ages as frog spawn or cobblestone papules or vesicles, sometimes with a hyperkeratotic or verrucous appearance.^2,4 Associated symptoms include serous drainage, edema, pruritus, and discomfort. The lesions may become eroded, which can predispose patients to secondary infections.^1,2 Acquired lymphangioma circumscriptum of the vulva can be difficult to diagnose, as the time interval between the initial cause and the appearance of skin findings can be years, leading to the misdiagnosis of ALC as other similar-appearing genital skin conditions such as squamous cell carcinoma or condyloma.^4,8 When misidentified as an infection, diagnosis can lead to substantial distress, abstinence from sexual activity, and unnecessary and painful treatments.

Skin biopsy is helpful in distinguishing ALC from other differential diagnoses such as condylomata acuminata, squamous cell carcinoma, and condyloma lata. Histopathology in ALC is notable for dilated lymphatic vessels filled with hypocellular fluid and lined with endothelial cells in the superficial dermis; the epidermis can appear hyperplastic, hyperkeratotic, or eroded.^3-5,9 These lymphatic vessels stain positively for CD31 and D2-40, markers for endothelial cells and lymphatic endothelium, respectively, and negative for CD34, a marker for vascular endothelium.^3,4,9 Features suggestive of condylomata acuminata such as rounded parakeratosis, hypergranulosis, and vacuolated keratinocytes⁹ are not present. The giant condyloma of Buschke-Löwenstein, a clinical variant of verrucous squamous cell carcinoma, also can present as a warty ulcerated papule or plaque in the genital region, but the characteristic rounded eosinophilic keratinocytes pushing down into the dermis⁹ are not seen in ALC. Secondary syphilis is associated with condyloma lata, which are verrucous or fleshy-appearing papules often coalescing into plaques located in the anogenital region. Pathologic features of secondary syphilis include vacuolar interface dermatitis and acanthosis with long slender rete ridges.⁹ Squamous cell carcinoma, which can arise from inflammation associated with long-standing HS, must be ruled out, as it is associated with a high risk of mortality in patients with HS.¹⁰

It is noteworthy to recognize the various, often confusing nomenclature used to describe cutaneous lymphatic conditions. The terms acquired lymphangioma circumscriptum, secondary lymphangioma, and lymphangiectasia are used interchangeably to describe dilated lymphatic vessels in the skin.¹ The term atypical vascular lesion refers to lymphectasias of the skin of the breast due to prior radiation therapy most often used in the treatment of breast carcinoma; clinically, these present as red-brown or flesh-colored papules or telangiectatic plaques on the breast.^11,12 Lymphedema also may occur alongside atypical vascular lesions, as prior radiation or surgical lymph node dissection can predispose patients to impaired lymphatic drainage.¹³ The lymphatic histopathologic subtype of atypical vascular lesions may appear similar to ALC; however, the vascular subtype will demonstrate collections of capillary-sized vessels and extravasated erythrocytes.^11,12 Unlike ALC, the benign nature of atypical vascular lesions has been questioned, as they may be associated with a small risk for progression to angiosarcoma.^11-13 It also is important to distinguish ALC from lymphangiomatosis, a generalized lymphatic anomaly that is characterized by extensive lymphatic malformations involving numerous internal organs, including the lungs and gastrointestinal tract. This condition is associated with notable morbidity and mortality.¹³

Although the suffix of the term lymphangioma suggests a neoplastic process, ALC is not a neoplasm and can be managed expectantly in many cases.^2,3,8 However, due to cosmetic appearance, pain, discomfort, and recurrent bacterial superinfections, many patients pursue treatment. Treatment options for ALC include sclerotherapy, electrocautery, radiofrequency or carbon dioxide laser ablation, and excision, though recurrence can arise.^3-5,7,8 Our patient elected to manage her asymptomatic ALC expectantly.