Hydatid Cyst of the Lesser Sac: A Case Report and Literature Review

Introduction: Hydatid disease is a parasitic disease that is endemic in many parts at the world. It is caused by Echinococcus infection, Hydatid cyst of the lesser sac usually follows infection else where in the abdomen.

Presentation of Case: A 47 years-old female with a history of hepatic surgery for hydatic cyst, was admitted to our hospital for a chronic abdominal pain. Abdominal examination revealed a firm, epigastric mass. An enhanced computed tomography (CT) scan showed a multiloculated cystic mass within the lesser sac. The enzyme-linked immunoadsorbent assay (ELISA) test for echinococcal antigens was positive. She underwent surgical resection.The patiente recovered well and was discharged four days after surgery. Long-term postoperative mebendazole was prescribed.

Discussion and Conclusion : Humans get infected by the ingestion of ova from the faeces of dogs and through the portal vein, it reaches the liver wich represent the most common site of infection by the parasite followed by the lungs, kidneys, bone and brain. Hydatid cyst of the lesser sac usually follows infection elsewhere in the abdomen, Hydatid cyst of the lesser sac is a very rare presentation. Diagnosis of hydatid cyst can be achieved by clinical findings, serological tests and imaging methods. Treatment options consist of surgical management.