Endoscopic full-thickness resection for gastric submucosal tumors arising from the muscularis propria layer

Figure 1 Endoscopic full-thickness resection of gastric stromal tumors arising from the muscularis propria. A: A protruding submucosal lesion in the gastric corpus; B: Endoscopic ultrasound showing that the lesion arose from the muscularis propria; C: Submucosal injection of saline containing adrenaline and indigo carmine; D: Application of the IT knife to isolate the stromal tumor along its periphery; E: An “artificial perforation” was observed after stromal tumor resection and was sealed using titanium clips; F: Sealing of a perforation with multiple titanium clips; G: Resected tumor after the mucosa was removed (4.5 cm in diameter); H: View 9 d after operation, showing that the perforation healed well; I: View 72 d after the operation, showing that the perforation healed well, with only ulcer residues remaining.