Recently sessile serrated lesions (SSLs) have been recognized as another important precursor lesion to CRC. SSLs are thought be responsible for 15–30% of colorectal cancer.

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

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