Fig. 5

a. Chromoendoscopy (CE) findings of a gastric cancer of which margins of lateral extent cannot be clearly delineated until by Low-power magnifying endoscopy combined NBI (LM-NBI). A demarcation line cannot be seen by CE. b. LM-NBI findings of the area indicated by the arrow in a. A clear demarcation line can be seen. c. The highest-power magnifying endoscopy combined NBI findings of the area indicated by the arrow in a. A clear demarcation line can be seen. d. The extent of the carcinoma (yellow lines) was reconstructed according to the histopathological findings. The peroperative marking were clearly identified all the way around the carcinoma, as shown by black dotted line. Therefore, this lesion had been successfully delineation by CE + LM-NBI