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Retrospective Study
Copyright: ©Author(s) 2026.
World J Gastrointest Oncol. Mar 15, 2026; 18(3): 115737
Published online Mar 15, 2026. doi: 10.4251/wjgo.v18.i3.115737
Figure 2
Figure 2 Endoscopic submucosal dissection for sporadic nonampullary duodenal tumor. 0-IIa lesion, 15 mm × 10 mm, mucosal carcinoma, vertical margin (-), horizontal margin (-). A: Lesion in the descending duodenum; B: Narrow band imaging revealed irregular microvascular and microsurface patterns; C: Injection after marking; D and E: Circumferential incision and submucosal dissection with golden knife; F: Post-endoscopic submucosal dissection ulcer; G: Clip closure; H: En bloc specimen.


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