title: A rare cause of acute lower gastrointestinal bleeding.
authors.affiliation: Changhua Christian Medical Centre, 135 Nanhsiao St, Changhua, 500 Taiwan.
authors.forename: H-H
authors.initials: HH
authors.lastname: Yen
authors.forename: Y-Y
authors.initials: YY
authors.lastname: Chen
authors.forename: M-S
authors.initials: MS
authors.lastname: Soon
mesh_terms: D000208:Acute Disease; D000368:Aged; D001158:Arteries / Q000002:abnormalities; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male; D011351:Proctoscopy; D012007:Rectum / Q000098:blood supply*