title: Keratoacanthomas arising within a linear epidermal nevus.
abstract: An example of keratoacanthomas arising within a congenital linear epidermal nevus is documented. Previously reported cases indicate that squamous-cell carcinoma, basal-cell epithelioma, and keratoacanthoma may develop In linear epidermal nevi. Any recently appearing nodule in a linear epidermal nevus should raise the clinician's index of suspicion for one of these secondary tumors.
mesh_terms: D000328:Adult; D006801:Humans; D007636:Keratoacanthoma / Q000473:pathology*; D008297:Male; D009508:Nevus, Pigmented / Q000150:complications* / Q000151:congenital; D012871:Skin Diseases / Q000473:pathology*; D012878:Skin Neoplasms / Q000150:complications* / Q000151:congenital