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Cyst hydatid is a parasitic infectious disease caused by Echinococcosis. Even if the liver and lung are mainly affected organs, this cyst can be seen in every organ. Clinical presentation varies depending on the affected organ. We report here an unusual location of hydatid cyst, such as intermuscular septum of left scapular area. Sixty-five years of woman presented a swelling of left-back, and after surgery, her pathological diagnosis was hydatid cyst. Hydatid cyst is a common disease worldwide, and this disease is known to affect usually liver and lungs, but especially in endemic areas, every doctor should be aware when patients come to the clinic for soft tissue swelling of the different body areas.
Keywords: Echinococcal infection; hydatid cyst; soft tissue