This article presents the clinical features of a spectrum of pigmented lesi
ons. It begins with benign lesions that may be confused with melanocytic ne
vi, such as lentigines, seborrheic keratoses, and dermatofibromas. The next
section focuses on the various types of melanocytic nevi, including congen
ital, blue, and Spitz nevi. A description of atypical nevi is provided, fol
lowed by an outline of the clinical characteristics of each subtype of cuta
neous melanoma. The clinical characteristics of various pigmented lesions a
re illustrated.