CT scan infrarenal aortic aneurysm with thrombus

A 4 cm infrarenal AAA is shown on the axial CT images prior to (A) and following administration of intravenous contrast (B). Luminal thrombus (arrowhead) is seen surrounding the flow channel. The coronal CT reconstruction (C) shows the low density circumferential thrombus (arrows) surrounding the contrast-filled lumen.