681439.fig.001a
(a)
681439.fig.001b
(b)
Figure 1: (a) Magnifying endoscopy under white-light imaging shows microvasculature of the normal esophagus. (b) Magnifying endoscopy under narrow-band imaging improves visualization of the reddish-brown superficial vessels (white arrow, Inoue’s classification of intraepithelial papillary capillary loops type II) and the cyanic hue deeper vessels (black arrow).