Fig. 14
From: Bowel wall thickening at CT: simplifying the diagnosis

Stratified attenuation pattern in pseudomembranous colitis. Axial contrast-enhanced CT scan shows significant wall thickening of the ascending and descending colon (arrows) due to submucosal oedema, resulting in the stratified appearance. The marked thickening of the bowel wall and the mild pericolonic fat stranding suggest pseudomembranous colitis