Comparison of treatment strategies for submucosal tumors originating from the muscularis propria at esophagogastric junction or cardia

Figure 1 Endoscopic submucosal dissection. A: Endoscopic view of a submucosal tumor in the cardia of the stomach; B: Endoscopic ultrasonography showing a hypoechoic submucosal tumor in the muscularis propria; C: Circumferential markings around the lesion; D and E: Mucosal incision along the marked points after submucosal injection; F: The tumor was completely resected macroscopically; G: Resected specimen; H: Endoscopic view at the 3-month follow-up.