Colorectal NeoplasmsIntestinal MucosaColonoscopyColonic NeoplasmsAdenomaGastric MucosaRectal NeoplasmsIntestine, SmallEarly Detection of CancerColorectal Neoplasms, Hereditary NonpolyposisColonSigmoidoscopyAdenocarcinomaFluorouracilColonic PolypsMouth MucosaNeoplasm MetastasisOrganoplatinum CompoundsNeoplasm StagingTumor Markers, BiologicalOccult BloodPrognosisLeucovorinGene Expression Regulation, NeoplasticCamptothecinJejunumHT29 CellsRectumLiver NeoplasmsImmunohistochemistryMass ScreeningCarcinomaMutationRisk FactorsCell Line, TumorAdenomatous PolypsHCT116 CellsCarcinoembryonic AntigenNeoplasm ProteinsSurvival AnalysisMicrosatellite InstabilityAntineoplastic Combined Chemotherapy ProtocolsColorectal SurgeryGenetic Predisposition to DiseaseSurvival RateMicrosatellite RepeatsDNA MethylationProspective StudiesCase-Control StudiesIleumNeoplasm InvasivenessAdenomatous Polyposis ColiIntestinesRNA, MessengerAntineoplastic AgentsDNA, NeoplasmMutS Homolog 2 ProteinReverse Transcriptase Polymerase Chain ReactionDuodenumGenes, APCFollow-Up StudiesIntestinal PolypsRetrospective StudiesDisease ProgressionNasal MucosaStomach NeoplasmsProto-Oncogene Proteins B-rafTreatment OutcomeGerm-Line MutationPolymerase Chain Reactionras ProteinsMice, NudeRiskNeoplasmsDNA Mismatch RepairTime FactorsMucous MembraneColectomyDisease-Free SurvivalLung NeoplasmsAntimetabolites, AntineoplasticIntestinal DiseasesGenotypeBreast NeoplasmsAntibodies, MonoclonalCaco-2 Cellsbeta CateninAntibodies, Monoclonal, HumanizedIntestinal AbsorptionIncidenceGenes, rasUnited StatesDietNeoplasm Recurrence, LocalRisk AssessmentPolymorphism, GeneticCeliac DiseaseRegistriesSensitivity and SpecificityApoptosis