[IDIOPATHIC RETROPERITONEAL FIBROSIS].
D010336:Pathology; D012185:Retroperitoneal Fibrosis; D012187:Retroperitoneal Space; D014517:Ureteral Obstruction
PATHOLOGY; RETROPERITONEAL FIBROSIS; RETROPERITONEAL SPACE; URETERAL OBSTRUCTION
IDIOPATISK RETROPERITONEAL FIBROS.