title: CT scanning for the follow-up of corticosteroid treatment of primary retroperitoneal fibrosis.
mesh_terms: D003251:Constriction, Pathologic; D005500:Follow-Up Studies; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology / Q000628:therapy; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care; D011241:Prednisone / Q000627:therapeutic use*; D012185:Retroperitoneal Fibrosis / Q000150:complications / Q000000981:diagnostic imaging / Q000188:drug therapy*; D014057:Tomography, X-Ray Computed; D014515:Ureteral Diseases / Q000209:etiology / Q000601:surgery
chemical_list: D011241:Prednisone