title: [Rectal involvement by prostate carcinoma: a report of three cases].
abstract: We reported 3 cases of rectal involvement by locally invasive prostate carcinoma which caused an urethrorectal fistula in case 1 and a rectal stenosis in case 2 and 3. Discriminating between primary rectal carcinoma and prostate carcinoma locally invasive to the rectum is very important because of distinct differences in treatment and prognosis. To confirm the tumor origin, tumor markers, proctosigmoidscopy, computerized tomography and biopsy with immunohistochemical staining for prostate specific antigen were useful.
authors.affiliation: Department of Urology, Kasukabe Municipal Hospital.
authors.forename: H
authors.initials: H
authors.lastname: Masuda
authors.forename: T
authors.initials: T
authors.lastname: Yamada
authors.forename: S
authors.initials: S
authors.lastname: Kawakami
authors.forename: T
authors.initials: T
authors.lastname: Watanabe
authors.forename: H
authors.initials: H
authors.lastname: Nagamatsu
authors.forename: K
authors.initials: K
authors.lastname: Nagahama
authors.forename: T
authors.initials: T
authors.lastname: Negishi
mesh_terms: D000230:Adenocarcinoma / Q000150:complications*; D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D008297:Male; D011471:Prostatic Neoplasms / Q000150:complications*; D012002:Rectal Diseases / Q000209:etiology*; D012003:Rectal Fistula / Q000209:etiology*; D014522:Urethral Diseases / Q000209:etiology*; D014548:Urinary Fistula / Q000209:etiology*