Clinical outcomes of per‐oral endoscopic tumor resection for submucosal tumors in the esophagus and gastric cardia

POET is a safe and effective treatment for SMTs. However, in patients where the minor axis diameter is > 30 mm or the TMI > 1000, surgical excision should be considered. Furthermore, application of POET for SMTs with malignant potential should be carefully considered to ensure optimal oncologic outcomes.