Retroperitoneal fibrosis.
D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012185:Retroperitoneal Fibrosis / Q000145:classification / Q000175:diagnosis / Q000209:etiology / Q000473:pathology / Q000601:surgery; D014515:Ureteral Diseases / Q000145:classification / Q000209:etiology / Q000473:pathology / Q000601:surgery