CT of abdomen with contrast revealing small pockets of intra-abdominal free air noted throughout the whole abdomen with mild fat stranding at the level of the mesenterium at the left paramedial lower abdomen and small amount of intrapelvic free fluid. A background of significant diverticular disease involving a redundant sigmoid which courses cranially to the umbilical region as well as scattered throughout the entire colon. This is suspicious for perforation within a hollow viscus (red arrow).