Fig. 1(A-D) Morphologic findings and resection techniques for duodenal neuroendocrine tumors (A, patient 6; B, patient 7; C, patient 9; D, patient 10). (Ac) Endoscopic mucosal resection (EMR) with circumferential precutting (EMR with precutting): after submucosal injection and circumferential mucosal incision, snaring was performed. (Bc) Endoscopic submucosal dissection: after submucosal injection, circumferential mucosal incision was performed. (Cc) EMR with ligation: band ligation was performed. (Dc) EMR: snaring was performed.
Fig. 2(A-D) Endoscopic findings and coronal computed tomography (CT) scans before and after endoscopic resection (patient 4). (A, C) Endoscopy and CT image show a submucosal mass (black arrows). (B, D) Follow-up endoscopic and coronal CT images show no evidence of recurrence 62 months after resection.
Table 1Survey of Endoscopic Features and Clinical Characteristics of the Patients with Duodenal Neuroendocrine Tumor
Table 2Survey of Clinical Characteristics of Patients with Duodenal Neuroendocrine Tumor