Bilateral vulvar basal cell carcinomata.

Vulvar basal cell carcinoma is rare, accounting for less than 5% of vulvar neoplasms. There is great variation in the clinical appearance of this neoplasm, which occurs most commonly in older women. Metastasis seldom occurs, but the tumor may extend deeply into local tissues. We report the first case of bilateral vulvar basal cell carcinomata in a 66-year-old woman who had received radiotherapy for urethral carcinoma 35 years earlier. Both tumors were treated with Mohs micrographic surgery and have not recurred after 13 years.