Two different vulvar pigmented lesions in the same patient: Basal cell carcinoma and mucosal melanosis mimicking melanoma and in-transit metastases

Basal cell carcinoma (BCC) is the most common malignant skin cancer of the head and neck region. Vulvar BCC accounts for less than 1% of all BCCs and represents less than 5% of all vulvar cancers. The postmenopausal females are mostly affected and the most common site is labium majus. Vulvar melanosis is the most frequent lesion among genital pigmented disorders. It usually occurs in white women and has a benign course with its melanoma-like presentation. Herein, we report a case of vulvar BCC on labium majus and vulvar melanosis at the side of BCC dermatoscopically mimicking melanoma and in-transit metastasis.