Figure 1.

Endoscopic full-thickness resection treatment of gastric stromal tumors arising from the muscularis propria. (a) A protruding submucosal lesion in the gastric fundus; (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 observed after stromal tumor resection; (f) Sealing of a perforation with multiple titanium clips; (g) Resected tumor with the mucosa removed (5 cm in diameter); (h) View 9 days after the operation, showing that the perforation healed well.