Contribution of Narrow Band Imaging (NBI) for the Characterization of Scalloped Polyps (NBI POLYPES COLIQUES)

Pre-inclusion criteria: * Major patient with a colonoscopy scheduled in one of the participating hospitals (CHD Vendée and CHU Nantes). * Patient who agreed to participate in the study and gave his express consent * Patient affiliated with a social security system or beneficiary of a scheme Inclusion Criteria: * Patient with 1 or more polyps less than 20 mm observed during colonoscopy Exclusion Criteria: * Patient with an emergency colonoscopy for ongoing digestive bleeding or occlusion symptoms * Patient with chronic inflammatory bowel disease (IBD): Crohn's disease or unclassified colitis * Patient with familial adenomatous polyposis * Pregnant or lactating woman * Minor patient * Major patient under tutorship, curatorship, or deprived of liberty * Patient unable to understand protocol and / or give express consent * Patient not affiliated with a social security system or beneficiary of such a scheme * Patient hospitalized or treated without their consent