title: Malignancy associated with ureterosigmoidostomy: detection by mucosa ornithine decarboxylase.
abstract: Urinary diversion into the gastrointestinal tract (ureterosigmoidostomy) is associated with stepwise malignant degeneration of colonic mucosa. Early detection of such malignancy can be difficult. Ornithine decarboxylase (ODC) is an enzyme that initiates polyamine synthesis that is elevated in malignant colonic mucosa, but its level in premalignant mucosa after ureterosigmoidostomy is unknown. Ten Wistar rats underwent urinary diversion (bladder trigone to sigmoid colon), and were maintained on a regular diet with antibiotics for 6 months, then killed. All animals developed metaplastic changes histologically at the anastomosis. Mean ODC levels of colonic mucosa at the anastomosis v normal colon 8 cm proximal were 515 +/- 177 pmole v 24.5 +/- 4.4 (P less than .01). These data show that premalignant changes in colonic mucosa after ureterosigmoidostomy can be detected by elevated colonic biopsy ODC levels. Periodic sigmoidoscopy with colon mucosa biopsy for histology and ODC levels in children with ureterosigmoidostomy is recommended.
authors.affiliation: Department of Surgery, St Louis University School of Medicine, MO.
authors.forename: T R
authors.initials: TR
authors.lastname: Weber
authors.forename: S H
authors.initials: SH
authors.lastname: Westfall
authors.forename: G F
authors.initials: GF
authors.lastname: Steinhardt
authors.forename: L
authors.initials: L
authors.lastname: Webb
authors.forename: C
authors.initials: C
authors.lastname: Sotelo-Avila
authors.forename: R H
authors.initials: RH
authors.lastname: Connors
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000209:etiology; D000818:Animals; D001706:Biopsy; D012809:Colon, Sigmoid / Q000601:surgery; D003110:Colonic Neoplasms / Q000175:diagnosis* / Q000209:etiology; D003125:Colostomy / Q000009:adverse effects; D007413:Intestinal Mucosa / Q000032:analysis*; D009955:Ornithine Decarboxylase / Q000032:analysis*; D051381:Rats; D011919:Rats, Inbred Strains; D014519:Ureterostomy / Q000009:adverse effects; D014547:Urinary Diversion / Q000009:adverse effects*
chemical_list: D009955:Ornithine Decarboxylase