Sutton's nevus (halo nevus).
D000152:Acne Vulgaris / Q000150:complications; D000293:Adolescent; D006801:Humans; D008297:Male; D009508:Nevus, Pigmented / Q000150:complications / Q000473:pathology; D012867:Skin / Q000473:pathology; D012871:Skin Diseases / Q000150:complications; D012878:Skin Neoplasms / Q000473:pathology; D014820:Vitiligo / Q000150:complications* / Q000473:pathology