Isolated Primary Hydatid Disease of Omentum; Report of a Case and Review of the Literature

Hydatid disease, most commonly caused by the larval stage of Echinococcus granulosus, affects mainly human liver and lung, and rarely other parts of the body. It is prevalent in most sheep-raising Mediterranean Countries including Iran. Peritoneal hydatid cyst, either primary or secondary, represents an uncommon but significant manifestation of the disease. The present case report describes a case of primary isolated hydatid disease of omentum, which to our knowledge constitutes the first case of this kind in Iran.