title: [Orbital hydatid cyst].
abstract: METHODS
  A 72-year-old man presented with left exophthalmia, impaired visual acuity and ocular pain. CT revealed a posterolateral homogeneous unilocular cyst in the left orbital cavity. Ultrasound showed a 38 x 17 mm purely cystic retro-ocular thin lined mass. Hydatid serologic tests were positive. The cyst was completely enucleated, after irrigation with hypertonic saline solution. The diagnosis was confirmed histologically.
  
  
  CONCLUSIONS
  The orbital hydatic cyst is a rare pathology in Western countries but remains relatively frequent in North-African countries. It can be observed in urban centers a high percentage of immigrant population. It is thus necessary to keep this pathology in mind when confronted to an intra-orbital cystic formation and to avoid its rupture.
authors.affiliation: Service d'otorhinolaryngologie et de chirurgie maxillofaciale, CHU La Rabta, 1007 Tunis, Tunisie. Jeblaouiyassine@yahoo.fr
authors.forename: Y
authors.initials: Y
authors.lastname: Jeblaoui
authors.forename: J
authors.initials: J
authors.lastname: Bouguila
authors.forename: K
authors.initials: K
authors.lastname: Yacoub
authors.forename: H
authors.initials: H
authors.lastname: Bouguila
authors.forename: N
authors.initials: N
authors.lastname: Ben Neji
authors.forename: G
authors.initials: G
authors.lastname: Besbes
mesh_terms: D000368:Aged; D004443:Echinococcosis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005094:Exophthalmos / Q000469:parasitology; D006801:Humans; D008297:Male; D009916:Orbital Diseases / Q000000981:diagnostic imaging / Q000469:parasitology*; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014786:Vision Disorders / Q000469:parasitology; D014792:Visual Acuity