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URL of this page: //medlineplus.gov/ency/imagepages/2307.htm
Keratoacanthoma
Overview
Keratoacanthomas are rapidly growing, red (erythematous), dome shaped bumps (papules/nodules) with central craters. Occasionally, these will disappear spontaneously (involute). Often, they are treated to avoid further involvement or destruction of underlying tissue. They are of concern because of the similarity to squamous cell cancer.
Review Date 8/2/2025
Updated by: Ramin Fathi, MD, FAAD, Director, Phoenix Surgical Dermatology Group, Phoenix, AZ. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
