Screening for Precancerous Lesions of Upper Gastrointestinal Tract: From the Endoscopists' Viewpoint

Figure 6

(a) White-light imaging endoscopy shows a type 0-IIb lesion with mildly hyperemic change of mucosal surface. (b) Chromoendoscopy after spraying 1.5% Lugol’s solution discloses Lugol-unstained appearance. (c) Magnifying endoscopy with narrow-band imaging system reveals abnormal superficial vessels (Inoue’s classification of intraepithelial papillary capillary loops type V).

(a)

(b)

(c)