Figure 1: (a) CT scan of the abdomen 2 days following high-dose intravenous steroids shows extensive PI of right colon. Intramural gas tracking is visualized parallel to the bowel mucosa in the ascending and transverse colon. (b) Repeat CT scan after 3 days bowel rest and tapering of steroids and shows resolution of PI. No evidence of intramural gas along the colonic mucosa is seen.