title: Idiopathic retroperitoneal fibrosis.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012185:Retroperitoneal Fibrosis / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000601:surgery; D014567:Urography