Fig. 2.
Abdominal contrast-enhanced computed tomography (CT) and angiography of the superior mesenteric artery (SMA) in Case 2. (A) Three-dimensional CT image showing stenosis of the celiac axis due to compression by the median arcuate ligament (white arrow), and an aneurysm in the pancreaticoduodenal arcades (asterisk). (B) Superselective angiography of the anterior pancreaticoduodenal artery (PDA) did not show any aneurysms. (C) Superselective angiography of the posterior PDA showed an aneurysm measuring 12 mm in diameter (white arrow) with slight extravasation. (D) SMA angiography after embolization did not show the aneurysm. Microcoils are visible in the proximal portion of the posterior inferior PDA (white arrow) and in the branch of the anterior PDA (asterisk).