title: Bilateral kidney pseudotumor due to sarcoidosis: a radiological study case.
abstract: OBJECTIVE
  To report one case of bilateral kidney pseudotumor due to sarcoidosis in a 75 year-old man with prostatic carcinoma and hypertrophic  pachymeningitis.
  
  
  METHODS
  Renal Doppler, body CT, CT-guided renal biopsy, blood analysis including angiotensin converting enzyme (ACE), blood levels and  test-treatment  (corticosteroid response) were performed.
  
  
  RESULTS
  The radiological studies performed showed bilateral kidney masses and pulmonary calcified hilar adenopathies. Blood analysis showed renal  failure and  increased ACE levels. Renal biopsy showed non-caseating granulomas. Neurological symptoms and renal failure improved with corticosteroid therapy.
  
  
  CONCLUSIONS
  Bilateral kidney pseudotumor due to sarcoidosis is a rare pathology. Sarcoidosis must be included in the differential diagnosis work  up of patients  with inflammatory or autoimmune disease and bilateral kidney pseudotumors. Radiological findings of kidney sarcoidosis are quite unspecific.  Histological diagnosis  with CT guided biopsy or US guided biopsy of kidney masses may be performed.
authors: Radiological Department, University Hospital Virgen de la Victoria, Malaga, Spain.
authors: Ana
authors: A
authors: Diez de los Ríos
authors: Antonio Javier
authors: AJ
authors: Marquez Moreno
authors: María Victoria
authors: MV
authors: Ortega Jiménez
authors: Eva
authors: E
authors: Garcia Carrasco
authors: Maria Jesus
authors: MJ
authors: Alferez Alferez
authors: Rafael
authors: R
authors: Aguilar Cuevas
authors: Jose Antonio
authors: JA
authors: Villalobos Martin
authors: Alfredo
authors: A
authors: Matilla Vicente
authors: Maria Mercedes
authors: MM
authors: Acebal Blanco
mesh_terms: D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D000368:Aged; D001706:Biopsy; D006104:Granuloma, Plasma Cell / Q000000981:diagnostic imaging* / Q000209:etiology*; D006801:Humans; D007668:Kidney / Q000473:pathology; D007674:Kidney Diseases / Q000000981:diagnostic imaging* / Q000209:etiology* / Q000473:pathology; D007676:Kidney Failure, Chronic / Q000000981:diagnostic imaging / Q000209:etiology; D008297:Male; D009393:Nephritis / Q000150:complications / Q000000981:diagnostic imaging; D007703:Peptidyl-Dipeptidase A / Q000097:blood; D012507:Sarcoidosis / Q000150:complications* / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed
chemical_list: D000305:Adrenal Cortex Hormones; D007703:Peptidyl-Dipeptidase A