title: Retroperitoneal fibrosis presenting as acute renal failure.
abstract: BACKGROUND
  A 60-year-old man with a history of atherosclerotic disease of the carotid and coronary vasculature presented with lower back pain and acute renal failure. Imaging studies revealed bilateral ureteral obstruction by a large retroperitoneal mass.
  
  
  METHODS
  Physical examination, urine and blood analysis, catheterization, radiography of the chest, abdominal and pelvic CT, magnetic resonance angiography, renal ultrasound and biopsy of mass.
  
  
  METHODS
  Retroperitoneal fibrosis.
  
  
  RESULTS
  Ureteral stenting, laparoscopic ureterolysis, and immunosuppressive therapy with prednisone and mycophenolate mofetil.
authors.affiliation: University of Texas Southwestern Medical Center, Dallas, TX, USA. robert.reilly2@med.va.gov
authors.forename: Robert F
authors.initials: RF
authors.lastname: Reilly
mesh_terms: D058186:Acute Kidney Injury / Q000000981:diagnostic imaging / Q000209:etiology*; D001018:Aortic Diseases / Q000453:epidemiology; D050197:Atherosclerosis / Q000453:epidemiology; D001416:Back Pain / Q000209:etiology; D004108:Dilatation, Pathologic; D006801:Humans; D006869:Hydronephrosis / Q000453:epidemiology; D007668:Kidney / Q000000981:diagnostic imaging; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D010996:Pleural Effusion / Q000453:epidemiology; D012185:Retroperitoneal Fibrosis / Q000150:complications* / Q000175:diagnosis* / Q000000981:diagnostic imaging; D012307:Risk Factors; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014517:Ureteral Obstruction / Q000209:etiology