Efficient hemostatic method for endoscopic submucosal dissection of colorectal tumors

Figure 4 Clinical use of the new method for hemorrhage from the submucosal vessel. A: Coagulation of the hemorrhagic vessels made the vessels and the surrounding submucosa brownish; B: The brownish vessel was removed and the surrounding submucosa was dissected. The view of the submucosa became clear and the other vessel could be detected; C: The vessel was coagulated using the forceps to prevent perioperative hemorrhage; D: The coagulated vessel was removed and the surrounding submucosa was dissected. Thereafter, the view of the submucosa was improved.