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Figure 2. (A) An endoscopic white light image showing adenocarcinoma, 3rd portion, 0-IIa, cT1a (M), 12 mm; (B) endoscopic image showing indigo carmine spraying; (C) filling the lumen with water after air deflation; (D) snaring with 15 mm snare; (E) mucosal defect after UEMR where the procedure time was 3 min; (F) complete prophylactic clipping with two clips; (G) resected specimen shown as a white light image; (H) resected specimen shown using narrow band imaging; and (I) histopathological image by hematoxylin and eosin stain. The histopathological diagnosis was well differentiated tubular adenocarcinoma, pT1a (M), pHMX, pVM0.