title: [Occult rectal cancer in Crohn disease].
abstract: An adenocarcinoma in the anorectal region was an accidental histological finding recorded from a female patient who had suffered Crohn's disease for many years. A rectovaginal fistula in the neighbourhood was also discovered but was in no way anatomically related to the carcinoma. Reference is made to an account of the literature for discussion of pathogenetic factors for the development of Crohn-associated gastro-intestinal carcinomas and conclusions that ought to be drawn for diagnosis and therapy when it comes to patients with Crohn's disease. Definite assessment is not yet possible for the very low number of cases so far observed.
authors.affiliation: Chirurgischen Klinik, des St.-Katharinen-Krankenhauses Frankfurt am Main.
authors.forename: M
authors.initials: M
authors.lastname: Lorenz
authors.forename: W
authors.initials: W
authors.lastname: Fabian
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology* / Q000601:surgery; D000328:Adult; D001706:Biopsy; D003106:Colon / Q000473:pathology; D003424:Crohn Disease / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D007082:Ileum / Q000473:pathology; D012004:Rectal Neoplasms / Q000473:pathology* / Q000601:surgery; D012007:Rectum / Q000473:pathology
vernacular_title: Okkultes Rektumkarzinom bei Morbus Crohn.