title: [Malignant anorectal melanoma. Presentation of 6 cases and review of the literature].
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001005:Anus Neoplasms / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008545:Melanoma / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D008875:Middle Aged; D011859:Radiography; D012004:Rectal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology
vernacular_title: Melanoma maligno anorrectal. Presentación de seis casos y revisión de la literatura.