Percutaneous catheter drainage in combination with choledochoscope-guided debridement in treatment of peripancreatic infection

Figure 2 Replacement of the drainage catheter with a larger-diamete drainage tube. A: Gradual expansion of the drainage catheter sinus tract using different Fr skin expanders along with the guidewire; B: Pulling out the expander with its sheath left in the focus after insertion of a sheath matching the 24-Fr skin expander into the focus; C: Insertion of a 22-Fr drainage tube into the focus through the sheath lumen of a skin expander; D: Left in the focus.