IDIOPATHIC RETROPERITONEAL FIBROSIS.
D006869:Hydronephrosis; D010336:Pathology; D012185:Retroperitoneal Fibrosis; D012187:Retroperitoneal Space; D013514:Surgical Procedures, Operative; D014517:Ureteral Obstruction
HYDRONEPHROSIS; PATHOLOGY; RETROPERITONEAL SPACE; SURGERY, OPERATIVE; URETERAL OBSTRUCTION