Fig. 1. Endoscopic transgastric cholecystectomy. (A) Incision of the anterior wall of the gastric antrum to establish an abdominal entry channel. (B) Exposure of the gallbladder. (C) Dissection of the gallbladder from the gallbladder bed starting from the fundus. (D) Dissection of the cystic duct and the gallbladder triangle. (E) Removal of the gallbladder and ligation of the cystic duct remnant with nylon thread. (F) Pursed-string suturing of the gastric incision using a combination of metal clips and nylon threads. (G) Complete removal of the gallbladder under endoscopy. (H) In this case, the gallbladder was completely filled with stones, necessitating cholecystectomy.

Fig. 2. Anatomy of Calot’s triangle.