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Cutaneous melanoma is a type of skin cancer typically associated with significant ultraviolet radiation exposure. Melanoma arises from melanocytes, cells found within the lower portion of the epidermis that make the pigment melanin.
While much less common than squamous cell carcinoma or basal cell carcinoma, melanoma is responsible for most deaths from skin cancer. In 2024, there will be more than 100,000 new cases of melanoma and over 8,000 melanoma-related deaths.1 If localized at the time of diagnosis, survival rates are excellent. Cutaneous melanomas are more common in those with fair complexions or who have had long periods of exposure to natural or artificial sunlight.
Melanoma can also occur in mucous membranes. Mucosal melanoma is much less common than cutaneous melanoma and accounts for only a very small percentage of all new melanoma diagnoses. Unlike their cutaneous counterparts, risk factors for mucosal melanomas have yet to be identified. Although there is some disagreement on whether vulvar melanomas represent cutaneous or mucous melanomas, vulvovaginal melanomas have historically been considered to be mucosal melanomas.
Vulvovaginal melanomas are characterized by a high mortality rate, diagnostic challenges, and lack of awareness, making early detection and intervention crucial to improving patient outcomes. The 5-year overall survival rate for vulvar melanoma is 36% and for vaginal melanoma ranges between 5% and 25%.2 Survival rates for vulvovaginal melanomas are lower than for other types of vulvar cancers (72%) or for cutaneous melanomas (72%-81%).2
Racial disparities in survival rates for mucosal and cutaneous melanomas were highlighted in a retrospective study using the Surveillance Epidemiology and End Results (SEER) database. Although the number of Black patients included was small, the median overall survival in that population was less than that in non-Black patients with vulvovaginal melanoma (16 vs. 39 months). Similar findings were noted in Black patients with cutaneous melanoma, compared with non-Black patients (median overall survival, 124 vs 319 months).3
One of the most significant obstacles in the diagnosis of vulvar and vaginal melanoma is its rarity. Both patients and clinicians alike may fail to recognize early warning signs. In a world where skin cancer is heavily publicized, melanoma in the genital area is not as frequently discussed or understood. Postmenopausal patients may have less regular gynecologic care, and unless they present with specific symptoms prompting an exam, melanomas can grow undetected, progressing to more advanced stages before they are discovered.
The median age of patients diagnosed with vulvar and vaginal melanomas is 67-68.4,5 Symptoms can be subtle and nonspecific. Women with vulvar melanoma may experience symptoms that are similar to other vulvar cancers including pruritus, irritation, pain, bleeding, or a new or growing mass. While vaginal melanoma can be asymptomatic, patients frequently present with vaginal bleeding, discharge, and/or pain (including dyspareunia).
Vulvovaginal melanomas may present differently than cutaneous melanomas. Vulvar melanomas are often pigmented and frequently present as ulcerated lesions. In some cases, though, they appear amelanotic (lacking pigment), making them even harder to identify. The ABCDEs of skin cancer (asymmetry, border, color, diameter, evolving) should be applied to these lesions. Change in the size, shape, or pigment of preexisting melanosis (areas of hyperpigmentation caused by increased melanin), should raise concern for possible malignant transformation.
Most vaginal melanomas occur within the distal third of the vagina, frequently along the anterior vaginal wall.6 They can be polypoid or nodular in appearance and may be ulcerated. While biopsy of any suspicious, enlarging/changing, or symptomatic lesion should be performed, it may be prudent to pause prior to biopsy of a vaginal lesion depending on its appearance. Although rare, gestational trophoblastic neoplasia (GTN) can present with vaginal metastases, and these lesions are frequently very vascular and pose a high bleeding risk if biopsied. They may look dark blue or black. If there is any concern for metastatic GTN on vaginal exam, a beta-hCG level should be obtained prior to biopsy.
Treatment of vulvovaginal melanoma may include surgical excision, systemic therapy, radiation therapy, or a combination of treatments. There is growing use of immunotherapy that mirrors cutaneous melanoma therapy.
Vulvar and vaginal melanoma represent a rare yet serious health issue for women and their impact on public health should not be underestimated. Vulvovaginal melanoma often goes unrecognized until it has reached an advanced stage. Increased awareness about these rare forms of melanoma among both patients and healthcare professionals is vital to improve early detection and treatment outcomes. With greater attention to this disease, we can strive for better diagnostic methods, more effective treatments, and ultimately, a reduction in mortality rates associated with vulvar and vaginal melanoma.
Dr. Tucker is assistant professor of gynecologic oncology at the University of North Carolina at Chapel Hill. She has no conflicts of interest.
References
1. National Cancer Institute. Cancer Stat Facts: Melanoma of the skin. 2024 Dec 2. Available from: https://seer.cancer.gov/statfacts/html/melan.html.
2. Piura B. Lancet Oncol. 2008 Oct;9(10):973-81. .
3. Mert I et al. Int J Gynecol Cancer. 2013;23(6):1118-25.
4. Wang D et al. Am J Cancer Res. 2020 Dec 1;10(12):4017-37.
5. Albert A et al. J Gynecol Oncol. 2020 Sep;31(5):e66.
Cutaneous melanoma is a type of skin cancer typically associated with significant ultraviolet radiation exposure. Melanoma arises from melanocytes, cells found within the lower portion of the epidermis that make the pigment melanin.
While much less common than squamous cell carcinoma or basal cell carcinoma, melanoma is responsible for most deaths from skin cancer. In 2024, there will be more than 100,000 new cases of melanoma and over 8,000 melanoma-related deaths.1 If localized at the time of diagnosis, survival rates are excellent. Cutaneous melanomas are more common in those with fair complexions or who have had long periods of exposure to natural or artificial sunlight.
Melanoma can also occur in mucous membranes. Mucosal melanoma is much less common than cutaneous melanoma and accounts for only a very small percentage of all new melanoma diagnoses. Unlike their cutaneous counterparts, risk factors for mucosal melanomas have yet to be identified. Although there is some disagreement on whether vulvar melanomas represent cutaneous or mucous melanomas, vulvovaginal melanomas have historically been considered to be mucosal melanomas.
Vulvovaginal melanomas are characterized by a high mortality rate, diagnostic challenges, and lack of awareness, making early detection and intervention crucial to improving patient outcomes. The 5-year overall survival rate for vulvar melanoma is 36% and for vaginal melanoma ranges between 5% and 25%.2 Survival rates for vulvovaginal melanomas are lower than for other types of vulvar cancers (72%) or for cutaneous melanomas (72%-81%).2
Racial disparities in survival rates for mucosal and cutaneous melanomas were highlighted in a retrospective study using the Surveillance Epidemiology and End Results (SEER) database. Although the number of Black patients included was small, the median overall survival in that population was less than that in non-Black patients with vulvovaginal melanoma (16 vs. 39 months). Similar findings were noted in Black patients with cutaneous melanoma, compared with non-Black patients (median overall survival, 124 vs 319 months).3
One of the most significant obstacles in the diagnosis of vulvar and vaginal melanoma is its rarity. Both patients and clinicians alike may fail to recognize early warning signs. In a world where skin cancer is heavily publicized, melanoma in the genital area is not as frequently discussed or understood. Postmenopausal patients may have less regular gynecologic care, and unless they present with specific symptoms prompting an exam, melanomas can grow undetected, progressing to more advanced stages before they are discovered.
The median age of patients diagnosed with vulvar and vaginal melanomas is 67-68.4,5 Symptoms can be subtle and nonspecific. Women with vulvar melanoma may experience symptoms that are similar to other vulvar cancers including pruritus, irritation, pain, bleeding, or a new or growing mass. While vaginal melanoma can be asymptomatic, patients frequently present with vaginal bleeding, discharge, and/or pain (including dyspareunia).
Vulvovaginal melanomas may present differently than cutaneous melanomas. Vulvar melanomas are often pigmented and frequently present as ulcerated lesions. In some cases, though, they appear amelanotic (lacking pigment), making them even harder to identify. The ABCDEs of skin cancer (asymmetry, border, color, diameter, evolving) should be applied to these lesions. Change in the size, shape, or pigment of preexisting melanosis (areas of hyperpigmentation caused by increased melanin), should raise concern for possible malignant transformation.
Most vaginal melanomas occur within the distal third of the vagina, frequently along the anterior vaginal wall.6 They can be polypoid or nodular in appearance and may be ulcerated. While biopsy of any suspicious, enlarging/changing, or symptomatic lesion should be performed, it may be prudent to pause prior to biopsy of a vaginal lesion depending on its appearance. Although rare, gestational trophoblastic neoplasia (GTN) can present with vaginal metastases, and these lesions are frequently very vascular and pose a high bleeding risk if biopsied. They may look dark blue or black. If there is any concern for metastatic GTN on vaginal exam, a beta-hCG level should be obtained prior to biopsy.
Treatment of vulvovaginal melanoma may include surgical excision, systemic therapy, radiation therapy, or a combination of treatments. There is growing use of immunotherapy that mirrors cutaneous melanoma therapy.
Vulvar and vaginal melanoma represent a rare yet serious health issue for women and their impact on public health should not be underestimated. Vulvovaginal melanoma often goes unrecognized until it has reached an advanced stage. Increased awareness about these rare forms of melanoma among both patients and healthcare professionals is vital to improve early detection and treatment outcomes. With greater attention to this disease, we can strive for better diagnostic methods, more effective treatments, and ultimately, a reduction in mortality rates associated with vulvar and vaginal melanoma.
Dr. Tucker is assistant professor of gynecologic oncology at the University of North Carolina at Chapel Hill. She has no conflicts of interest.
References
1. National Cancer Institute. Cancer Stat Facts: Melanoma of the skin. 2024 Dec 2. Available from: https://seer.cancer.gov/statfacts/html/melan.html.
2. Piura B. Lancet Oncol. 2008 Oct;9(10):973-81. .
3. Mert I et al. Int J Gynecol Cancer. 2013;23(6):1118-25.
4. Wang D et al. Am J Cancer Res. 2020 Dec 1;10(12):4017-37.
5. Albert A et al. J Gynecol Oncol. 2020 Sep;31(5):e66.
Cutaneous melanoma is a type of skin cancer typically associated with significant ultraviolet radiation exposure. Melanoma arises from melanocytes, cells found within the lower portion of the epidermis that make the pigment melanin.
While much less common than squamous cell carcinoma or basal cell carcinoma, melanoma is responsible for most deaths from skin cancer. In 2024, there will be more than 100,000 new cases of melanoma and over 8,000 melanoma-related deaths.1 If localized at the time of diagnosis, survival rates are excellent. Cutaneous melanomas are more common in those with fair complexions or who have had long periods of exposure to natural or artificial sunlight.
Melanoma can also occur in mucous membranes. Mucosal melanoma is much less common than cutaneous melanoma and accounts for only a very small percentage of all new melanoma diagnoses. Unlike their cutaneous counterparts, risk factors for mucosal melanomas have yet to be identified. Although there is some disagreement on whether vulvar melanomas represent cutaneous or mucous melanomas, vulvovaginal melanomas have historically been considered to be mucosal melanomas.
Vulvovaginal melanomas are characterized by a high mortality rate, diagnostic challenges, and lack of awareness, making early detection and intervention crucial to improving patient outcomes. The 5-year overall survival rate for vulvar melanoma is 36% and for vaginal melanoma ranges between 5% and 25%.2 Survival rates for vulvovaginal melanomas are lower than for other types of vulvar cancers (72%) or for cutaneous melanomas (72%-81%).2
Racial disparities in survival rates for mucosal and cutaneous melanomas were highlighted in a retrospective study using the Surveillance Epidemiology and End Results (SEER) database. Although the number of Black patients included was small, the median overall survival in that population was less than that in non-Black patients with vulvovaginal melanoma (16 vs. 39 months). Similar findings were noted in Black patients with cutaneous melanoma, compared with non-Black patients (median overall survival, 124 vs 319 months).3
One of the most significant obstacles in the diagnosis of vulvar and vaginal melanoma is its rarity. Both patients and clinicians alike may fail to recognize early warning signs. In a world where skin cancer is heavily publicized, melanoma in the genital area is not as frequently discussed or understood. Postmenopausal patients may have less regular gynecologic care, and unless they present with specific symptoms prompting an exam, melanomas can grow undetected, progressing to more advanced stages before they are discovered.
The median age of patients diagnosed with vulvar and vaginal melanomas is 67-68.4,5 Symptoms can be subtle and nonspecific. Women with vulvar melanoma may experience symptoms that are similar to other vulvar cancers including pruritus, irritation, pain, bleeding, or a new or growing mass. While vaginal melanoma can be asymptomatic, patients frequently present with vaginal bleeding, discharge, and/or pain (including dyspareunia).
Vulvovaginal melanomas may present differently than cutaneous melanomas. Vulvar melanomas are often pigmented and frequently present as ulcerated lesions. In some cases, though, they appear amelanotic (lacking pigment), making them even harder to identify. The ABCDEs of skin cancer (asymmetry, border, color, diameter, evolving) should be applied to these lesions. Change in the size, shape, or pigment of preexisting melanosis (areas of hyperpigmentation caused by increased melanin), should raise concern for possible malignant transformation.
Most vaginal melanomas occur within the distal third of the vagina, frequently along the anterior vaginal wall.6 They can be polypoid or nodular in appearance and may be ulcerated. While biopsy of any suspicious, enlarging/changing, or symptomatic lesion should be performed, it may be prudent to pause prior to biopsy of a vaginal lesion depending on its appearance. Although rare, gestational trophoblastic neoplasia (GTN) can present with vaginal metastases, and these lesions are frequently very vascular and pose a high bleeding risk if biopsied. They may look dark blue or black. If there is any concern for metastatic GTN on vaginal exam, a beta-hCG level should be obtained prior to biopsy.
Treatment of vulvovaginal melanoma may include surgical excision, systemic therapy, radiation therapy, or a combination of treatments. There is growing use of immunotherapy that mirrors cutaneous melanoma therapy.
Vulvar and vaginal melanoma represent a rare yet serious health issue for women and their impact on public health should not be underestimated. Vulvovaginal melanoma often goes unrecognized until it has reached an advanced stage. Increased awareness about these rare forms of melanoma among both patients and healthcare professionals is vital to improve early detection and treatment outcomes. With greater attention to this disease, we can strive for better diagnostic methods, more effective treatments, and ultimately, a reduction in mortality rates associated with vulvar and vaginal melanoma.
Dr. Tucker is assistant professor of gynecologic oncology at the University of North Carolina at Chapel Hill. She has no conflicts of interest.
References
1. National Cancer Institute. Cancer Stat Facts: Melanoma of the skin. 2024 Dec 2. Available from: https://seer.cancer.gov/statfacts/html/melan.html.
2. Piura B. Lancet Oncol. 2008 Oct;9(10):973-81. .
3. Mert I et al. Int J Gynecol Cancer. 2013;23(6):1118-25.
4. Wang D et al. Am J Cancer Res. 2020 Dec 1;10(12):4017-37.
5. Albert A et al. J Gynecol Oncol. 2020 Sep;31(5):e66.