Advancements in endoscopic resection of gastrointestinal stromal tumors: Techniques, outcomes, and perspectives

Figure 2 Schematic illustration of endoscopic full-thickness resection for gastrointestinal stromal tumors involving the muscularis propria or deeper layers. A: Lesion (gastrointestinal stromal tumor) in the gastric fundus; B: Saline injection; C: Resection the lesion using hook/IT knives; D: Remove the resected specimen; E: Wound closure using endoclips. The procedure includes lesion marking, submucosal lifting, full-thickness resection, and defect closure using clips or sutures.