Long segment circumferential wall thickening of distal descending colon, sigmoid colon, rectum and anus is noted. It shows stratified enhancement with mucosal hyperenhancement. The single wall thickness measures 7 mm. Surrounding fat stranding and prominent vasa recta noted.
Few fistulous tracts are noted in perianal region. One of the fistulous tract on the right side shows supralevator extension with ramification and extending upto the posterior wall of urinary bladder