CT abdomen and pelvis with portal venous phase contrast demonstrates small bowel obstruction with transition point at the terminal ileum in which a large oblong shaped foreign body is impacted. This contains mixed metallic and possibly plastic components, which contains gas locules.
Although there is history of an intra-gastric balloon, this is not seen within the stomach. Therefore the findings are highly concerning for a spontaneously deflated and migrated intra-gastric balloon. There are also several short segments of narrowing and thickening of the small bowel proximal to this which are likely secondary to the passage of the balloon.
Small volume of pelvic free fluid. No evidence of pneumoperitoneum.
Patient went to theatre and had a terminal ileum enterotomy performed in which a deflated, migrated intra-gastric balloon was confirmed and removed