PMC8047504_01
(a): T1-weighted coronal images of pelvis MRI; (b): T2-weighted axial images. Hypersignals are detected in the left piriformis muscle, and radiologic sign of diffuse edema with extension in the gluteal muscles and adjacent skin structures.
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The radiological consultancy revealed a poorly defined abscess of 33 x 34 mm in size which was localized in the left piriformis muscle and a significant edema of the low left extremity, with partial thrombosis of left inferior cava vein, below the left renal vein, as well as in the left iliac and femoral vein with expressed swelling of the leg (Fig. 1a and b).
(a): T1-weighted images with a ring-like contrasting defect in the left iliac vein (arrow) confirming the thrombotic process; (b): the thrombotic process extended to the left femoral vein as well (asterisk).
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