The locations of the lesions were the cervical esophagus in two lesions ... of the epithelium and non-thinning of the keratinous layers (> 3 layers). One of 22 LGINs showed brownish epithelium ...
In conclusion, brownish epithelium on NBI is an important finding for the diagnosis of esophageal squamous neoplasias. The brownish coloration may be caused by thinning of the keratinous layer and ...