Fig. 4
From: Many faces of acute bowel ischemia: overview of radiologic staging
A 44 y/o male with chronic abdominal pain, recurrent episodes of partial small bowel obstruction and long history of portal vein thrombosis. MR enterography images show a fixed stricture (arrowheads) in jejunum on coronal T2-W FSE (a) and SSFP (b) sequences leading to upstream dilatation (asterisk). A partial filling defect (thin arrow) is also seen in SMV in axial T2-W SSFP sequence (c). On the post contrast coronal T1-W sequence (d), there are prominent mesenteric collateral structures (curved arrow) in the left hemi-abdomen adjacent to the stenotic jejunal segment. Chronic thrombosis of SMV is seen (thick arrow), with collateral formation (circle) in the porta hepatis due to chronic portal vein thrombosis