Observational Study
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Nov 14, 2014; 20(42): 15797-15804
Published online Nov 14, 2014. doi: 10.3748/wjg.v20.i42.15797
Figure 3
Figure 3 Endoscopic instrument-related perforation. A: A food residue of substantial volume was observed in the periampullary diverticula prior to the endoscopic retrograde cholangiopancreatography (ERCP) procedure (Case 3); B: Retroperitoneal free air (arrows) was detected by fluoroscopy after endoscopic sphincterotomy (EST) was performed during the ERCP procedure; C: The free air (arrows) was present before EST was performed.