Colorectal NeoplasmsColonoscopyAdenomaColonic PolypsPneumoradiographyAdenocarcinomaRectumRectal NeoplasmsIntestinal MucosaColonic NeoplasmsColonEarly Detection of CancerTumor Markers, BiologicalNeoplasm StagingImmunohistochemistryNeoplasm InvasivenessRetrospective StudiesColorectal Neoplasms, Hereditary NonpolyposisRisk FactorsSensitivity and SpecificityPrognosisPilot ProjectsColorectal SurgeryNeoplasmsPancreatic NeoplasmsLiver NeoplasmsNeoplasms, Cystic, Mucinous, and SerousSigmoidoscopyDNA, NeoplasmAdenomatous PolypsNeoplasms, Multiple PrimaryAdenocarcinoma, MucinousCarcinomaFluorouracilNeoplasm MetastasisNeoplasm ProteinsSkin NeoplasmsIntestinal PolypsAdenomatous Polyposis ColiOrganoplatinum CompoundsGene Expression Regulation, NeoplasticCarcinoembryonic AntigenLeucovorinNeoplasms, Second PrimaryLung NeoplasmsMass ScreeningMicrosatellite RepeatsCase-Control StudiesKidney NeoplasmsCamptothecinGastrointestinal NeoplasmsMutationMutS Homolog 2 ProteinHT29 CellsColectomyGenes, APCCell Line, TumorNeoplasm Recurrence, LocalThyroid NeoplasmsIntestinal NeoplasmsHCT116 CellsTreatment OutcomeRectal DiseasesGenes, rasAntigens, NeoplasmDNA MethylationOvarian NeoplasmsMyeloproliferative DisordersSurvival RateAppendiceal NeoplasmsSurvival AnalysisProto-Oncogene Proteins B-rafNeoplasms, ExperimentalParotid NeoplasmsIncidenceAntineoplastic AgentsProspective StudiesAntineoplastic Combined Chemotherapy Protocolsbeta CateninCystadenomaDNA Mismatch RepairNeoplasms, Connective and Soft TissueDNA Mutational AnalysisNeoplasms, Plasma CellFollow-Up Studiesras ProteinsGerm-Line MutationSigmoid NeoplasmsPolymerase Chain ReactionGenetic Predisposition to DiseaseDisease ProgressionColonic DiseasesCystadenoma, MucinousPrecancerous ConditionsEndocrine Gland NeoplasmsStomach NeoplasmsTime FactorsCohort StudiesCarcinoma, Pancreatic DuctalAdenomatous Polyposis Coli Protein