Figure 7a. Acute mesenteric ischemia in a patient with severe abdominal pain. Axial (a) and coronal (b) 3D multi-detector row CT scans demonstrate a mesenteric mass (arrows in a, straight arrows in b) encasing the mesenteric vessels. Focal calcification is seen within the mass (curved arrow in b). The small bowel loops are thickened, and ascites and mesenteric stranding are also noted. Biopsy revealed sclerosing mesenteritis.