Hydatid disease is a considerable social health problem because of its endemic distribution in many countries. It is a parasitic disorder caused by Echinococcus granulosus. The human is an accidental host of the parasite. Mostly, hydatid cyst is primarily in liver (75%) and lung (15%). Intraperitoneal hydatid cyst is found in 13% and it is usually secondary to rupture of primary hepatic cyst. We represent the case of 29 years old female having multiple intra-abdominal hydatid cysts in which one is a primary torsion omental hydatid cyst which is very rare. The open surgical intervention in the form of total pericystectomy is best, safe and effective in this case.
Key words: The hydatid diseases, the primary torsion omental hydatid cyst, open surgical intervention