title: Isolated hydatid cyst of kidney.
abstract: OBJECTIVE
  Hydatid cyst of the kidney is a very rare condition caused by the larval stage of Echinococcus granulosus. We report a case of isolated hydatid cyst of the kidney.
  
  
  METHODS
  A 32-year-old male patient presented with vague pain in the left lumbar region of 3 months' duration. Abdominal examination demonstrated a palpable mass in the left flank. The routine laboratory findings were normal. Radiologic studies showed a soft-tissue mass in the mid-portion of the left kidney measuring 115 x 130 mm.
  
  
  RESULTS
  We performed kidney-sparing pericystectomy, and the cyst was removed intact. The histopathologic findings confirmed the diagnosis.
  
  
  CONCLUSIONS
  In general, surgery is the treatment of choice for a hydatid cyst of the kidney, and kidney-sparing surgery is the most appropriate treatment whenever possible.
authors.affiliation: Department of Urology, Ali-ebne-Abitaleb Hospital, Zahedan University of Medical Sciences, Zahedan, Islamic Republic of Iran.
authors.forename: Faramarz
authors.initials: F
authors.lastname: Fazeli
authors.forename: Behzad
authors.initials: B
authors.lastname: Narouie
authors.forename: Mohammad Dehghani
authors.initials: MD
authors.lastname: Firoozabadi
authors.forename: Mohammad
authors.initials: M
authors.lastname: Afshar
authors.forename: Anoosh
authors.initials: A
authors.lastname: Naghavi
authors.forename: Mohammad
authors.initials: M
authors.lastname: Ghasemi-Rad
mesh_terms: D000328:Adult; D001707:Biopsy, Needle; D003952:Diagnostic Imaging / Q000379:methods*; D004443:Echinococcosis / Q000175:diagnosis* / Q000601:surgery; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D007492:Iran; D007674:Kidney Diseases / Q000175:diagnosis* / Q000601:surgery; D008297:Male; D012720:Severity of Illness Index; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D018608:Ultrasonography, Doppler; D014567:Urography