Advanced multimodality imaging of inflammatory bowel disease in 2015: An update

Figure 19 Axial contrast enhanced computed tomography in a patient with chronic Crohn’s disease demonstrating fatty proliferation of the mesentery (a). A loop of small bowel in the left iliac fossa is thickened, without adjacent stranding, and there is infiltration of fat into the submucosa - the “fat-halo sign” (white arrow).