Adenoma, VillousAdenomaColonic PolypsPolypsIntestinal PolypsAdenomatous PolypsColorectal NeoplasmsColonoscopyRectal NeoplasmsDuodenal NeoplasmsAmpulla of VaterCommon Bile Duct NeoplasmsRectal DiseasesColonic NeoplasmsColonography, Computed TomographicNeoplasms, Multiple PrimaryMuscle NeoplasmsAppendiceal NeoplasmsAdenomatous Polyposis ColiAdenoma, PleomorphicNasal PolypsAdenocarcinomaProctoscopesPituitary NeoplasmsAdrenocortical AdenomaSigmoidoscopyRectumHyperplasiaColonoscopesAdenoma, Liver CellMucin-6Narrow Band Imaging