title: Unusual tumor that presented with rectal bleeding.
authors.affiliation: Department of Surgery, Taipei Medical University Hospital, Taipei, Taiwan.
authors.forename: Hung-Hua
authors.initials: HH
authors.lastname: Liang
authors.forename: Weu
authors.initials: W
authors.lastname: Wang
authors.forename: Po-Li
authors.initials: PL
authors.lastname: Wei
mesh_terms: D000230:Adenocarcinoma / Q000150:complications* / Q000473:pathology; D002276:Carcinoid Tumor / Q000150:complications* / Q000473:pathology; D002454:Cell Differentiation; D003113:Colonoscopy; D006471:Gastrointestinal Hemorrhage / Q000209:etiology* / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000150:complications* / Q000473:pathology; D012007:Rectum