title: Plaque-type blue nevus.
abstract: Blue nevus may rarely appear in plaque form. It seems to be a benign and asymptomatic lesion, but because of its rarity, no definite prognosis can be given. Only through reporting of additional cases and their follow-up will the prognosis become clear.
mesh_terms: D000293:Adolescent; D001706:Biopsy; D006801:Humans; D008297:Male; D009508:Nevus, Pigmented / Q000145:classification / Q000175:diagnosis / Q000473:pathology*; D012878:Skin Neoplasms / Q000145:classification / Q000175:diagnosis / Q000473:pathology*