Fig. 1

The Endoscopic ultrasonography results and ESSD procedure. A&B Endoscopic ultrasound showed homogeneous hypoechoic lesions, and elastic imaging suggested a slightly hard texture. C: White light endoscope showed gastric body bulge lesions with smooth surface. D: Exfoliate the lesion and expose the tumor. E&F: Exposed serous membrane layer. G&H: performed pouch suture on the lesion with hemostatic clamp