title: Atypical manifestations of retroperitoneal fibrosis.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D012185:Retroperitoneal Fibrosis / Q000000981:diagnostic imaging*; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000209:etiology; D014546:Urinary Catheterization; D014567:Urography