Abstract:Objective To evaluate the clinicopathological features of esophageal schwannoma, and the effect of endoscopic submucosal dissection (ESD) and submucosal tunneling endoscopic resection (STER) for esophageal schwannoma.Methods The clinical characteristics, endoscopic characteristics, postoperative complications and pathological characteristics of 11 patients with esophageal schwannoma from August 2007 to July 2019 were retrospectively analyzed.Results Men accounted for 54.5%; The average age was (57.5 ± 12.4) years (40 ~ 81 years). Esophageal schwannomas are mostly located in the upper thoracic segment (45.5%, 5/11) and the middle thoracic segment (27.3%, 3/11). The white light endoscopic classification of 11 cases (100.0%) were all eminence type. The mucous membranes were smooth without ulcer. The mean tumor diameter was (2.5 ± 1.8) cm (0.3 ~ 5.0 cm). Meanwhile, endoscopic ultrasonography (EUS) showed that 10 cases (90.9%) had originated in the muscularis propria. All the 11 patients were hypoechoic, including 9 patients (81.8%) with homogeneous echo. There was no blood flow signal under endoscopic ultrasonography in 11 patients. In terms of growth mode, 6 cases (54.5%) were intraluminal growth and 5 cases (45.5%) were intraluminal and extraluminal growth. The complete resection rate was 100.0% (11/11). The median operation time was 41 min. None of the 11 patients (100.0%) had the complications such as perforation, delayed hemorrhage and infection. The time of initial postoperative fluid intake was (1.2 ± 0.6) d; The mean length of hospital stay was (6.9 ± 2.5) d. All tissue specimens were positive for S100. No local recurrence, distant metastasis and death occurred during the period.Conclusion ESD and STER are safe and effective in the diagnosis and treatment of esophageal schwannoma.