Figure 8. Duodenal perforation with air and fluid leakage in a 51-year-old woman. The patient underwent ERCP and sphincterotomy and developed postprocedure abdominal pain. Initial CT showed free retroperitoneal air. Repeat CT showed retroperitoneal fluid and a decrease in free air. CT scan obtained with oral and intravenous contrast material 5 days after ERCP shows minimal free air (arrow) and free fluid (*) in the retroperitoneum. The patient was treated conservatively and discharged after 10 days.