Figure 20. Pseudoaneurysm after aortobifemoral bypass in a 75-year-old man. Coronal MIP image shows a patent aortobifemoral bypass graft (small arrows) with a contrast material-filled outpouching in the region of the left femoral artery (large arrow), a finding consistent with a postsurgical pseudoaneurysm. The left renal artery is absent due to prior nephrectomy.