title: Retroperitoneal fibrosis producing ureteral obstruction.
mesh_terms: D004194:Disease; D012185:Retroperitoneal Fibrosis; D012187:Retroperitoneal Space; D014513:Ureter; D014515:Ureteral Diseases; D014517:Ureteral Obstruction
keywords: RETROPERITONEAL SPACE/diseases; URETER/diseases