case_images: PMC11371763_01
case_images: Initial CT angiography shows superior mesenteric artery (SMA) inflammation surrounding fat stranding around the proximal SMA (A). After 25 days of follow-up, CT angiography presents a 5.7 cm aneurysm on SMA (B).
case_images: fsurg-11-1394638-g001.jpg
case_images: PMC11371763_01_fsurg-11-1394638-g001.jpg
case_images: F1
case_images: On the day of the visit, the abdominal pain suddenly intensified, and an abdominal computed tomography (CT) scan was performed, which confirmed inflammation in the proximal SMA (Figure 1A). SMA, but the distal flow was intact (Figure 1B). Surgical resection and bypass of the aneurysm were planned.
case_images: A 5.7 cm superior mesenteric aneurysm was identified in operation (A). The superior mesenteric vein passed over the aneurysm sac and the branch of the mid-colic artery was confirmed (B). SMA interposition bypass using a PTFE graft with mid-colic artery bypass was done (C).
case_images: fsurg-11-1394638-g002.jpg
case_images: PMC11371763_01_fsurg-11-1394638-g002.jpg
case_images: F2
case_images: Using a 6 mm x 50 cm PTFE graft, a bypass was performed from the SMA orifice as end-to-end anastomosis, and mid-colic artery and graft were performed end-to-side anastomosis (Figure 2).
case_images: Post operation follow-up CT angiography showed recanalization of superior mesenteric artery. (arrow) (A), and blood flow was intact without ischemic changes in the bowel (B).
case_images: fsurg-11-1394638-g003.jpg
case_images: PMC11371763_01_fsurg-11-1394638-g003.jpg
case_images: F3
case_images: After 7 days, the follow-up CT angiography showed that blood flow was intact without ischemic changes in the bowel (Figure 3).