Retrieval-balloon-assisted enterography for ERCP after Billroth II gastroenterostomy and Braun anastomosis

Figure 1 Gastrojejunal anastomosis is detected at the distal end of the stomach, and 2 stomal openings corresponding to an end-to-side anastomosis can be identified endoscopically. If the efferent loop was constructed at the greater curvature of the stomach in the previous surgery, the “lower entrance” is the entrance to the right efferent loop.