Definition of keratoacanthoma - NCI Dictionary of Cancer Terms

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keratoacanthoma (KAYR-uh-toh-AK-un-THOH-muh)

A rapidly growing, dome-shaped skin tumor that usually occurs on sun-exposed areas of the body, especially around the head and neck. Keratoacanthoma occurs more often in males. Although in most patients it goes away on its own, in a few patients it comes back. Rarely, it may spread to other parts of the body.

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