Cold snare endoscopic resection for subepithelial tumors of the upper third of the esophagus.

Although most esophagus subepithelial tumors are benign, the possibility of malignancy cannot be completely ruled out and it can gradually increase, leading to symptoms such as dysphagia, so removal is still recommended. The narrow cavity and thin walls of the upper esophagus, as well as movement caused by breathing and heartbeat, makes it difficult to perform operation by endoscopy or surgery. Cold snare pulpectomy may been used to remove subepithelial tumors of the upper third of the esophagus due to a low risk of adverse events and short procedure time.