title: Primary malignant melanoma of the rectum presenting with lower gastrointestinal bleeding.
authors: A O
authors: AO
authors: Kaya
authors: H S
authors: HS
authors: Orhun-Yavuz
authors: E
authors: E
authors: Ucgul
authors: A
authors: A
authors: Kurt
mesh_terms: D000368:Aged; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008545:Melanoma / Q000150:complications*; D012004:Rectal Neoplasms / Q000150:complications*