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Keratoacanthoma

Definition(s)

A rapidly growing skin tumor that occurs especially in elderly individuals, resembles a carcinoma of squamous epithelial cells but does not spread, and tends to heal spontaneously with some scarring if left untreated.: Definition from: Merriam-Webster's Medical Dictionary by Merriam-Webster Inc.
A benign (noncancerous), rapidly growing skin tumor that usually occurs on sun-exposed areas of the skin and that can go away without treatment.: Definition from: National Cancer Institute dictionary


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