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 4
Figure 4 Endoscopic papillary balloon dilation-related perforations. A: Retroperitoneal free air (arrows) was detected by fluoroscopy (Case 4); B: Retroperitoneal free air (arrows) was detected by fluoroscope during balloon dilation (Case 6); C: Retroperitoneal free air was detected by computed tomography (CT) scan performed immediately after surgery (Case 4); D: Retroperitoneal free air was detected by CT scan performed immediately after surgery (Case 6).