Extrinsic stenosis of the ureter. Our caseload and review of the literature

: Obstructive uropathy is the common presentation course for various processes with an origin either intraluminar, parietal or extraluminar. A retrospective analysis of 41 cases of extrinsically originated obstructive uropathy seen in our Urology Unit from 1976 to 1991 was carried out. The cases were divided in three groups following an exclusively etiological criterion: 21.9% (9 patients) corresponded to primary retroperitoneal fibrosis; 51.2% (21 patients) to tumoral ureteral obstruction; and 26.8% (11 patients) to non-tumoral processes. For each division established, the features of clinical presentation, performance of the various diagnostic procedures used, and different therapy approaches are described also including a review on the current literature.