Pedunculated Basal Cell Carcinoma Arising on the Nipple of a 62-Year-Old Man: An Atypical Presentation of the Most Common Skin Cancer.

Basal cell carcinoma (BCC) is the most common type of skin cancer, and the greatest risk factor for its development is ultraviolet (UV) radiation exposure related to the sun or tanning. It most commonly presents on sun-exposed areas such as the head and neck, and it commonly has characteristic clinical and dermoscopic findings. This case illustrates a rare presentation of BCC with an unusual location and clinical morphology. The lesion was treated with Mohs micrographic surgery, with no recurrence at 24 months.