case_images: PMC9979870_01
case_images: (A) A distended left Common Femoral Vein seen on point-of-care ultrasound (POCUS). (B) The same vein proves to be non-compressible when pressure was applied.
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case_images: The CFV and femoral vein (FV) were distended and non-compressible (Figure 1, online Video S1). 
case_images: Picture of the patient's lower extremities showing no significant edema, erythema or asymmetry.
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case_images: This finding came as a surprise as no lower extremity edema was noted on physical exam (Figure 2).
case_images: A vascular-performed duplex ultrasound revealed acute non-compressible deep vein thrombosis in the left lower extremity involving (A) the left superficial femoral vein; (B) the left deep femoral vein; (C) the left external iliac vein; (D) the left common femoral vein.
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case_images: Contrast-enhanced CT showed that the left iliac vein (arrowhead) was compressed by the left and right common iliac arteries (asterisk), consistent with a diagnosis of May-Thurner syndrome.
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case_images: Computed tomography (CT) of the chest, abdomen, and pelvis with contrast revealed findings consistent with May-Thurner syndrome, with the left and right common iliac arteries compressing the left iliac vein proximal to the clot (Figure 4). 