title: Bladder carcinoma presenting with rectal obstruction.
abstract: Two patients with bladder carcinoma that caused annular constriction of the rectum are described. A mechanism of local invasion by genitourinary malignancies (bladder and prostate) involves penetration of the rectovesical fascia of Denonvillier and circumferential rectal spread. Treatment of complete or partial obstructing lesions includes surgery, radiotherapy, or chemotherapy (or combination), as well as several new techniques, notably laser destruction and transrectal tumor resection.
authors.affiliation: Department of Urology, Mayo Clinic, Rochester, Minnesota.
authors.forename: T J
authors.initials: TJ
authors.lastname: Stillwell
authors.forename: C C
authors.initials: CC
authors.lastname: Rife
authors.forename: M M
authors.initials: MM
authors.lastname: Lieber
mesh_terms: D002295:Carcinoma, Transitional Cell / Q000150:complications* / Q000628:therapy; D003131:Combined Modality Therapy; D006801:Humans; D007415:Intestinal Obstruction / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D012002:Rectal Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D014057:Tomography, X-Ray Computed; D001749:Urinary Bladder Neoplasms / Q000150:complications* / Q000628:therapy