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Demonstrates vascular manifestations of COVID-19 infection. (a) Occlusive deep vein thrombosis manifested by absent color Doppler flow in the proximal femoral vein. (b) Acute arterial thrombus, manifested by a filling defect (arrow) in the left common iliac artery on CT angiogram. Thrombus in this patient extended throughout the left lower extremity arterial system. (Color version of figure is available online.)
