A guide to imaging in bariatric surgery.

There has been an increase in utilization of bariatric surgery and, as with any surgical procedure, the associated risk of complications. Many of the post bariatric surgical complications can be acute, necessitating an emergency room visit and imaging evaluation. Radiologists, especially in the emergency setting, need to be familiar with normal post-operative appearances and potential surgical complications. This review focuses on various bariatric surgical procedures that are performed, and illustrates normal and abnormal radiographic appearances seen on post-operative fluoroscopic upper GI studies and abdominal pelvis CT examinations.