Basal cell carcinoma in a 12-year-old boy.

Basal cell carcinomas are common skin tumors occurring in white adults that are mainly attributable to ultraviolet-B exposure.1 They grow slowly, invade locally, and rarely metastasize.2 Basal cell carcinomas appear most frequently on the head, neck, and upper extremities. The majority occur on the face and the relative risk for recurrent tumor is high in certain sites, especially the nose.3 It is uncommon to see actinically induced basal cell...