Histopathological validation of magnifying endoscopy for diagnosis of mixed-histological-type early gastric cancer

Figure 3 Correlation between pathology and endoscopic findings. Preoperative endoscopic images were reviewed to determine whether the endoscopic finding of undifferentiated-type (UDT) component was recognizable within the area where UDT component was present in the histopathological examination. A: Endoscopically resected specimen cut into 2-mm-thick slices with mapping according to the histological types. Blue lines indicate differentiated-type component, while yellow lines indicate UDT component; B: Endoscopic images upon white light imaging onto which the histological type is mapped; C: Endoscopic images upon narrow-band imaging onto which the histological type is mapped; D: Magnifying endoscopy with narrow-band imaging finding of the designated UDT area with the yellow square in Figure 3C. ME-NBI: Magnifying endoscopy with narrow-band imaging; DT: Differentiated-type; UDT: Undifferentiated-type.