Hydatid Cyst of the Arm: A Case Report

Echinococcosis or hydatidosis is an anthropozoonosis following the development in humans and certain animals of the larva of a cestode transmitted by dogs: Echinococcus granulosus. The soft parts of the limbs represent a rare location of this parasite. As a result, diagnosis may be challenging and the condition can mimic soft tissue tumors. We present a case of isolated primary hydatid cyst of the arm in a 63-year-old rural woman. The diagnosis is based on imaging and immunological reactions and has been confirmed by histology. Surgical excision supplemented by chemotherapy based on antiparasitic drugs allowed recovery.