Polyp differential diagnosis by endoscopy has become a hot topic in the frame of the DISCARD discussion, stating that histologic analysis of small/diminutive (< 5

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

Endoscopic treatment for early carcinoma in the gastrointestinal tract has in the meantime become evidence-based and has been incorporated into national and international guidelines

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

Examples of superficial/early gastric tumors are shown below. In the stomach, flat lesions are predominant, often as combined lesions with a central depression (IIa+c). Sessile

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