PMC8590589_01
PMC8590589_02
CT scan showing a well-limited hydatid cyst in the expansion of left psoas muscle.
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fig1
An abdominopelvic CT was ordered to better characterize the mass and relations with its neighboring structures (Figure 1); it showed a hydatid cyst measuring 17 x 6.7 x 5.8 cm associated with an infiltration of the neighboring fat with infracentimetric ganglia, arriving in close contact with the small bowel, the left colon, and the left iliac wing.
MRI image in transversal (a) and sagittal (b) plane showing a floating membrane of the hydatid cyst.
CRIPE2021-1961509.002.jpg
PMC8590589_02_CRIPE2021-1961509.002.jpg
fig2
T1 and T2 containing a central floating membrane. The cyst arrives in contact with the vertebral body of L4-L5 without intramedullary involvement (Figure 2).