title: Percutaneous treatment of an orbital hydatid cyst: a new therapeutic approach.
abstract: OBJECTIVE
  To describe the percutaneous treatment of an orbital hydatid cyst as an alternative approach to conventional surgery.
  
  
  METHODS
  In a 21-year-old man with diplopia and right proptosis, radiologic studies disclosed a 25 x 25 x 20-mm purely cystic mass in the right retrobulbar area. Based on the presumptive diagnosis of hydatid cyst, the cyst was treated percutaneously under ultrasonographic guidance with aspiration, 15% hypertonic saline injection, and reaspiration without any complication.
  
  
  RESULTS
  A substantial decrease in the size of the cyst was observed in the 3 months after treatment. Nine months after treatment, the shrunken cyst had a volume of only 0.5 ml, and the patient was asymptomatic. Twenty-one months after the procedure, the findings were consistent with those at 9 months of follow-up.
  
  
  CONCLUSIONS
  Percutaneous treatment of orbital hydatid cysts, which is more satisfactory to both the patient and the physician, may be a safe and effective alternative to surgical extirpation.
authors.affiliation: Department of Radiology, Hacettepe University School of Medicine, Sihhiye, Ankara, Turkey.
authors.forename: O
authors.initials: O
authors.lastname: Akhan
authors.forename: S
authors.initials: S
authors.lastname: Bilgiç
authors.forename: D
authors.initials: D
authors.lastname: Akata
authors.forename: H
authors.initials: H
authors.lastname: Kiratli
authors.forename: M N
authors.initials: MN
authors.lastname: Ozmen
mesh_terms: D000328:Adult; D004172:Diplopia / Q000175:diagnosis / Q000209:etiology; D004322:Drainage / Q000379:methods; D004443:Echinococcosis / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D005094:Exophthalmos / Q000175:diagnosis / Q000209:etiology; D015822:Eye Infections, Parasitic / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009915:Orbit / Q000000981:diagnostic imaging / Q000473:pathology; D009916:Orbital Diseases / Q000150:complications / Q000175:diagnosis / Q000469:parasitology* / Q000601:surgery*; D014463:Ultrasonography