Fig. 16

Non-occlusive Mesenteric Ischemia (NOMI) in three different patients. a, b A 61 y/o male with hypovolemic shock, images show wall thickening, submucosal hypo-enhancement (target wall pattern), and mucosal hyper-enhancement (thick arrows) involving small and large bowel suggesting early-stage bowel ischemia associated with hepatic ischemia as peripheral hepatic hypo-enhancement (asterisk). c, d A 77 y/o female in shock with bloody diarrhea and renal failure. Colonic distention (thick arrow) with paper-thin wall and subtle pneumatosis (thin arrow). Note collapsed IVC (arrowhead). Renal Ischemia is also seen as heterogeneous delayed nephrogram compatible with acute tubular necrosis (dotted arrows). e, f A 62 y/o male presented with abdominal distention, pain and sepsis 5 days after CABG. Extensive cecal pneumatosis (asterisks) is noted with hypo-enhancement of medial wall (arrowhead) and hyper-enhancement of lateral wall (thin arrow). There is a rim-enhancing pericecal collection (curved arrow) and extraluminal air (dotted arrow) compatible with perforation and abscess. Patchy areas of necrosis were found at surgery