Orbital hydatid cyst from Echinococcus granulosus: a case report.

In endemic regions, intra-orbital hydatid cysts are a rare manifestation of Echinococcus granulosus infection, classically disturbing the liver and lungs. This report details a patient's case with an intra-orbital cyst presenting. Diagnostic imaging revealed a cystic lesion causing optic nerve displacement. Serology confirmed echinococcosis. Surgical excision was performed, resulting in proptosis resolution but subsequent exophoria and visual acuity reduction due to surgical complications. Orbital hydatid cysts are considered diagnostic challenges due to symptom overlap with other pathologies. Treatment primarily includes surgical removal, supplemented by anthelmintic therapy to prevent recurrence. This case underlines the importance of early detection and careful surgical intervention to minimize complications and ensure optimal outcomes in managing this rare condition.