Colonic PolypsAdenomaPolypsIntestinal PolypsColonography, Computed TomographicAdenomatous PolypsColonoscopyColonic NeoplasmsAdenomatous Polyposis ColiColonDiverticulosis, ColonicNasal PolypsGenes, APCRectal DiseasesSigmoid DiseasesColorectal NeoplasmsIntestinal MucosaRadiographic Image Interpretation, Computer-AssistedAdenoma, VillousColonic DiseasesAdenoma, PleomorphicPituitary NeoplasmsAdrenocortical AdenomaAdenoma, Liver CellAdenoma, ChromophobeSensitivity and SpecificityRetrospective StudiesGrowth Hormone-Secreting Pituitary AdenomaACTH-Secreting Pituitary AdenomaHyperplasia