Research progress in laparoscopic endoscopic cooperative surgery for early gastric cancer: A narrative review

Figure 3 Non-exposed endoscopic wall inversion surgery operation steps. A: Endoscopic injection of 10% glycerol into the submucosa; B: Circumferential incision of the seromuscular layer under laparoscopy, followed by linear suturing of the outer rim with 3-0 silk sutures; C: Tumor inversion into the gastric cavity; D: Complete removal of the tumor tissue through the oral cavity, with closure of the mucosal and submucosal layer wound edges using endoscopic forceps.