Noncancerous, Precancerous and Cancerous Tumors

Picture of Keratoacanthoma 2

Picture of Keratoacanthoma (2 of 2)

Keratoacanthoma - Erythematous, dome-shaped tumor with a large, central, keratotic plug of 6-weeks duration. The lesion cannot be distinguished clinically from squamous cell carcinoma.

Source: Fitzpatrick's Color Atlas & Synopsis of Clinical Dermatology Klaus Wolff, Richard Allen Johnson, Dick Suurmond Copyright 2005, 2001, 1997, 1993 by The McGraw-Hill Companies. All Rights reserved.