Primary intramuscular infestation of Echinococcus granulosus misdiagnosed asa soft tissue tumor:a case report
BACKGROUND: The occurrence of a primary intramuscular infestation ofEchinococcus granulosus is extremely rare. CASE: A 70-year-old woman with primary skeletal musclehydatidosis initially presented with a soft tissue mass. Clinical and radiologic examinationrevealed 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 wasperformed, and a diagnosis of hydatid disease was made. CONCLUSION: This very rare case of primaryintramuscular 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 tissuemass.
Insabato,L Marino,G Fazioli,F Iacono,V Mascolo,M Palombini,L
Section of Pathology, Department of Biomorphological and Functional Sciences,University of Naples “Federico II”, Naples, Italy. insabato@unina.it
Soft tissues, NOS Neoplasms Echinococcus granulosus Mass, NOSDifferential diagnostic aspects
