CT - CT abdomen with oral and intravenous contrast
Coronal C+ portal venous phase
Axial C+ portal venous phase
The cecum, right colon, transverse colon and left colon as well as the distal 30cm or so of the ileum are thick walled and oedemtous. The sigmoid colon is spared. No obstruction or megacolon. No perforation or abscess. No lymphadenopathy.