The study shows long segment of abnormal wall colonic thicening involving form proximal transverse colon, hepatic fleure, ascending colon and cecum. The irregular wall thickening along the involoved segment is seen more marked in ascending colon and cecum with large polypoid intraluminal lesions. Abnormal thickening of the ileocecal valve as well as slighlty thickened wall of terminal ileum is observed. The appendix is filled with contrast material and appears normal. There is no extraluminal contrast extravasation.