A Rare Case Series of Intraorbital Unilocular Hydatid Cysts in Pediatric Patients

The orbital hydatidosis due to Echinococcus granulosus accounts for only less than 1% of all hydatid cysts. Here we report a case series of intraorbital hydatid cysts.
This retrospective investigation included two pediatric patients (4 and 13-year-old boys) who were referred because of a progressive proptosis in northwest Iran. Orbital imaging disclosed cystic intraorbital lesions in the cases. Following clinical and surgical explorations, the histopathological evaluation re-confirmed definitely the infertile unilocular hydatid cysts.
Differential diagnoses of orbital hydatid cysts from cystic lesions should be explicitly noticed in endemic areas prior to surgery in order to avoid complications.