DOI: 10.26650/iuitfd.1846362 ISSN: 1305-6441

GIANT INTRAMUSCULAR HYDATID CYST IN THE MEDIAL THIGH COMPARTMENT TREATED WITH WIDE RESECTION

Buğra Can, Sefa Key
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Primary intramuscular cystic echinococcosis is rare and can resemble a soft-tissue neoplasm. A 77-year-old man presented with a six-month history of painless, progressive swelling of the medial right thigh. Magnetic resonance imaging showed a 278-mm multiloculated lesion within the vastus medialis-adductor compartment, with daughter cysts, a cyst-within-cyst appearance, and detached membranes. Thoracoabdominal imaging revealed no other focus. Albendazole was started preoperatively. The operative field was isolated with hypertonic saline-soaked pads, and the lesion was removed en bloc along the myofascial planes without cyst rupture or spillage; the cavity was then irrigated with a scolicidal agent. Histopathological examination confirmed hydatid cyst. Albendazole was continued postoperatively, and six-week magnetic resonance imaging showed no residual lesion. At 12 months, the patient was pain-free, walking independently, and had no clinically relevant hip or knee motion loss or obvious quadriceps or adductor weakness. Characteristic magnetic resonance imaging findings can prevent hazardous biopsy, while spill-free en bloc resection with scolicidal precautions can achieve local control and preserve function in selected giant intramuscular lesions.

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