Figure 3

Endoscopic full-thickness resection of gastric fundus gastrointestinal stromal tumors. (A) Endoscopic manifestations of GIST in the gastric fundus (depressed ulcer formation at the top). (B) Hook knife marked lesions. (C) Submucosal injection around the tumor. (D) stripping the tumor and full-thickness resection. (E) titanium clips were used to close the wound. (F) The diameter of the resected specimen was about 3.4 cm