Flow Phenomenon Mimicking Thrombus

Abstract

Pedal infusion of i.v. contrast material [in computed tomography] was recommended for better visualization of the inferior vena cava [in order to check for possible renal carcinoma extension]. A possible pitfall of this technique is demonstrated and is felt to represent a flow phenomenon due to rapid flow from the renal or common iliac veins. Delayed scanning or possibly repeat scanning after bolus injection of i.v. contrast medium may be helpful to rule out the possibility of true tumor thrombus [in humans].