title: Ureteroduodenal fistula.
abstract: A patient with pneumaturia was found to have a ureteroduodenal fistula, only the fourth such lesion reported.  However, this patient is unique in that a fistula developed between the stump of a ureter and the duodenum in the absence of a kidney on that side.  This case was namaged with a distal skin ureterostomy, thereby avoiding extremely hazardous surgery in the area of the duodenum.  This successful conservative managemant offers a sharp contrast to the recommended management of reno-alimentary fistulas.  The possible cause in this case based on roentgenographic analysis is discussed.
mesh_terms: D004386:Duodenum / Q000503:physiopathology; D006801:Humans; D007412:Intestinal Fistula / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D014513:Ureter / Q000503:physiopathology; D014545:Urinary Calculi / Q000150:complications; D014548:Urinary Fistula / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D014567:Urography