Skin Cancer Squamous Cell Carcinoma Keratoacanthoma Variant ...

Dr. Shane Chapman, MD discusses Skin Cancer Squamous Cell Carcinoma Keratoacanthoma Variant. See more at www.dermnet.com PLEASE RATE AND COMMENT!!! Keratoacanthomas appear suddenly and grow rapidly. They reach a certain size, usually 0.5 cm to 2.0 cm, stop growing, and then regress weeks to months later. They begin as red-to-flesh colored, dome-shaped papules with a smooth surface and a central crater filled with a keratinous plug. The pathologist sometimes has difficulty differentiating a keratoacanthoma from SCC. While keratoacanthomas have been regarded in the past as self-limited, regressing lesions that resemble squamous cell carcinoma, most dermatologists today would classify them as squamous cell carcinoma variants. They should be treated as other forms of squamous cell carcinoma.
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