Gastric submucosal tumor with extraluminal growth: successful resection with transgastric natural orifice transluminal endoscopic surgery

A 56-year-old woman was admitted to our hospital for endoscopic resection of a 2.8-cm gastric fundus submucosal lesion ([Fig. 1]) incidentally found during a screening endoscopy. An extraluminal component was seen on an abdominal enhanced computed tomography (CT) scan ([Fig. 1]). The lesion was hypoechoic and originated from the muscle layer on endoscopic ultrasonography ([Fig. 2]).