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

Figure 2 Submucosal tunneling endoscopic resection. A: Endoscopic view of the submucosal tumor in the cardia; B: Endoscopic ultrasound image showing a tumor originating from the muscularis propria; C: Incision 3-4 cm proximal to the tumor to create a submucosal tunnel after fluid cushion injection; D: Exposed tumor within the submucosal tunnel; E and F: Endoscopic dissection of the lesion through a tunnel; G: Tumor retrieval after en bloc resection; H: Endoscopic view at the 3-month follow-up.