title: Acneform lesions in Becker's nevus.
abstract: Three cases of Becker's nevus are described in which acneform lesions were confined strictly within the limits of the hyperpigmentation. The combined phenomenon has not been reported previously, and we conceive it to be either a rare variant of the anomaly or a still rarer coincidence of Becker's nevus and nevus comedonicus.
mesh_terms: D000152:Acne Vulgaris / Q000150:complications / Q000473:pathology*; D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D006983:Hypertrichosis / Q000150:complications; D008297:Male; D009508:Nevus, Pigmented / Q000150:complications / Q000473:pathology*; D010859:Pigmentation Disorders / Q000150:complications; D012878:Skin Neoplasms / Q000150:complications / Q000473:pathology*