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Hydatid cyst of the thigh: a challenging diagnosis

Hydatid disease is a common infection in Mediterranean countries. It is caused by a parasite  ’Echinococcus granulosus ’, which may affect several organs. Liver and lungs are frequent locations. Primary hydatid cyst located in the musculoskeletal system is uncommon.1

These images illustrate the case of a 27-year-old man without past medical history who presented with a swelling of the right thigh that appeared 6 months ago. Physical examination showed a tender mass of the upper third of the right thigh. There was no history of trauma or fever. …