Axial image from CTA demonstrating a 3.9 cm aneurysm of the proximal aspect of the saphenous vein graft in the right AV groove (white arrow). Contrast opacification is seen in the lumen with mass effect on the adjacent native RCA (black arrow). Contrast can be seen extending anteriorly within a ulceration in the thrombosed portion of the aneurysm lumen (white arrowhead).