Second axial delayed phase CT (Day 8 of admission), on soft tissue window setting, demonstrating a central thick-walled bladder with intraluminal gas compatible with recent instrumentation; to the anatomical right side of the bladder there is a large bladder diverticulum containing a gas–fluid level, however, the previously demonstrated intramural gas has resolved; extraluminal gas is seen in the anterior antidependent regions of the pelvis/lower abdomen indicative of perforation, the volume of which has reduced compared to the earlier CT examination.