Endoscopic treatments for small gastric subepithelial tumors originating from muscularis propria layer

Figure 1 Endoscopic muscularis excavation. A: A subepithelial tumor was found at the posterior wall of the gastric body; B: Making several dots around the tumor; C: A cross-incision was made at the overlying mucosa of the tumor; D: Excavating the tumor from the muscularis propria layer; E: An artificial ulcer was observed after excavation; F: The artificial ulcer was closed with several clips.