In the following, examples for superficial/early Barrett lesions of the esophagus are shown. Here, flat and sessilelesions are predominant, pedunculated tumors are rare. Sessile tumor

The Paris classification for superficial / early tumors should be part of a standard terminology for endoscopic assessment. This classification applies to the entire gastrointestinal

Examples of superficial/early squamous cell lesions in the esophagus are presented below. In the esophagus, flat lesions are predominant in the early tumors, and polypoid

The NICE (NBI International Colorectal Endoscopic) Classification is based on narrow-band images of colon polyps. The classification uses staining, vascular patterns, and surface patterns to