A Case of Infundibulocystic Basal Cell Carcinoma Clinically Mimicking a Melanocytic Nevus Associated with Epidermal Cysts.

A 52-year-old Japanese woman presented with a 1.5-cm black, glossy, flat, pediculated lump that clinically mimicked a melanocytic nevus on the left temporal side of her head. The subcutaneous tumor beneath the nodule was elastic and hard.