The diagnosis was keratoacanthoma (KA), an indolent squamous cell neoplasm of the skin that classically presents as a rapidly growing tumor on sun-exposed areas. 1 The tumor preferentially occurs on ...
Rapidly growing tumor on the forearm Six weeks after it appeared, the small red bump on this man's right forearm had become an erythematous crater-shaped nodule A 54-year-old Caucasian man presented ...
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