title: Ureteropelvic junction obstruction secondary to periureteral lipoma.
abstract: We report a unique case of extrinsic ureteral obstruction secondary to a periureteral lipoma discovered during pyeloplasty for an apparent ureteropelvic junction obstruction. We discuss the importance of preoperative recognition of rare extrinsic causes of ureteropelvic junction obstruction.
authors.affiliation: Department of Urology, Case Western Reserve University School of Medicine, Cleveland, Ohio.
authors.forename: E M
authors.initials: EM
authors.lastname: Smith
authors.forename: M I
authors.initials: MI
authors.lastname: Resnick
mesh_terms: D000328:Adult; D006801:Humans; D007674:Kidney Diseases / Q000209:etiology; D007682:Kidney Pelvis; D008067:Lipoma / Q000150:complications*; D008297:Male; D014516:Ureteral Neoplasms / Q000150:complications*; D014517:Ureteral Obstruction / Q000209:etiology*