Presentation
Left thigh stiffness and swelling.
Patient Data
Age: 25 years
Gender: Male
From the case:
Hydatid cyst within vastus lateralis muscle
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Multicystic lesion involving vastus lateralis of quadriceps femoris muscle.
On both T1 and T2-weighted images, the daughter cysts are hypointense to the mother cyst. Daughter cyst membrane detachment seen between two of the daughter cysts (water lily sign).
Case Discussion
Intramuscular hydatid cyst has been reported in the sartorius, quadriceps, gluteal muscles, chest wall musculature and pectoralis major muscle. Most cases are treated by surgical excision. In our recent case, the hydatid cyst was totally excised, after which and the daughter cysts were evacuated and the mass lesion was thus proven to be a hydatid cyst.
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