Isolated muscle involvement in hydatid cyst.

Abstract

Although hydatid cyst, caused by Echinococcus granulosus, can develop in any part of the body, involvement of the liver and lung represents approximately 90% of all cases. Involvement of the musculoskeletal system is comparatively rare. Diagnosis is difficult because symptoms are non-specific. We present a case, together with the imaging findings, in order to draw attention to the exclusion of hydatid cyst before surgery or biopsy in patients with muscular pain and a palpable mass.