Primary intramuscular infestation of Echinococcus granulosus misdiagnosed as a soft tissue tumor: a case report |
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Authors: | Insabato Luigi Marino Gilda Fazioli Flavio Iacono Venanzio Mascolo Massimo Palombini Lucio |
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Institution: | Section of Pathology, Department of Biomorphological and Functional Sciences, University of Naples "Federico II", Naples, Italy. insabato@unina.it |
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Abstract: | BACKGROUND: The occurrence of a primary intramuscular infestation of Echinococcus granulosus is extremely rare. CASE: A 70-year-old woman with primary skeletal muscle hydatidosis initially presented with a soft tissue mass. Clinical and radiologic examination revealed a huge cystic mass in the right quadriceps muscle without any visceral organ involvement. Since the differential diagnosis included a soft tissue tumor, fine needle aspiration cytology was performed, and a diagnosis of hydatid disease was made. CONCLUSION: This very rare case of primary intramuscular infestation of E granulosus was clinically misdiagnosed as a soft tissue tumor. Hydatid disease, albeit rare, should be considered in the differential diagnosis of a soft tissue mass. |
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