Fig. 2

Merged image of computed tomography angiography and colonography. Computed tomography angiography revealed abdominal aortic locoregional stenosis. Accompanying the descending colon, collateral circulations comprised the gastroduodenal artery (GDA) and superior mesenteric artery (SMA), with flow into the inferior mesenteric artery (IMA), and deficiency of the left colic artery