|Table 2: NICE classification.|
*Can be applied using colonoscopes with/without optical (zoom) magnification.|
**These structures (regular or irregular) may represent the pits and the epithelium of the crypt opening.
***Type 2 consists of Vienna classification types 3, 4 and superficial 5 (all adenomas with either low or high grade dysplasia, or with superficial submucosal carcinoma). The presence of high grade dysplasia or superficial submucosal carcinoma may be suggested by an irregular vessel or surface pattern, and is often associated with atypical morphology (e.g., depressed area).