Abstract:Abstract: Objective To investigate the therapeutic effect and safety of ESE (endoscopic submucosal excavation) as the derivative technology of ESD (endoscopic submucosal dissection) for intestinal Neuroendocrine tumor. Methods A total of 23 lesions diagnosed as Neuroendocrine tumor were treated by ESE. Pathological diagnosis was performed. Reverse events were recorded.Patients were followed up for recurrence and metastasis. Results Lesions, 0.4 ~ 3.0 cm (medium size 1.0 cm) in diameter,were all resected at one ESE procedure.The operation time was 20 ~ 75 min (medium 30 min). Postoperative bleeding occurred in one case .Initiative full thickness resection was made in one case due to the violation of muscularis propria layer. 23 cases were histologically diagnosed as neuroendocrine tumor, with 21 as G1 and 2 as G2, none as G3. Within 3 gastric neuroendocrine tumors, 2 were type 1 and 1 was type 2. All resected samples were free of residual tumor cell in the lateral and basal margins. Conclusion ESE is safe and efficacious for the treatment of intestinal neuroendocrine tumor.