Muscular Hydatidosis: A Rare Circumstance (Case Report)

Introduction:The larvae of the genus Echinococcus cause the parasitic disease Hydatidosis.Hydatidosis commonly affects the liver and lungs but can occur in any part of the body, including rare sites like musculoskeletal tissue.Case Report: We reported a case of a 42-year-old male nurse with a painless mass in the anterior region of his right thigh that developed between 2009 and 2023.No history of trauma, lesions, walking difficulties, or impact on daily activities were observed.Abolfazl Hospital in Kashmar admitted him from Bandar Abbas, Southern Iran.The preoperative diagnosis was lipoma.Blood tests were normal.Both sonography and magnetic resonance imaging detected multiple cysts measuring 140*45 mm and 144*51*32 mm, respectively.Imaging exams showed the size, shape, and location of the cyst.Surgery confirmed the diagnosis of a hydatid cyst.Histopathological examination confirmed a Hydatid cyst diagnosis. Conclusion:Hydatid cysts in muscles could occur rarely in muscle (0.5%-2.5%).Thus, it's important to consider Hydatidosis in the differential diagnosis of soft tissue masses in lowprevalence areas.