Peritoneal NeoplasmsColorectal NeoplasmsAdenomaColonoscopyColorectal Neoplasms, Hereditary NonpolyposisColorectal SurgeryColonic NeoplasmsRectal NeoplasmsNeoplasmsColonic PolypsPancreatic NeoplasmsAdenocarcinomaLiver NeoplasmsRectumNeoplasm StagingTumor Markers, BiologicalImmunohistochemistryNeoplasms, Cystic, Mucinous, and SerousSigmoidoscopyDNA, NeoplasmAdenomatous PolypsNeoplasms, Multiple PrimaryColonAdenocarcinoma, MucinousCarcinomaPrognosisFluorouracilNeoplasm MetastasisNeoplasm ProteinsSkin NeoplasmsIntestinal PolypsAdenomatous Polyposis ColiOrganoplatinum CompoundsGene Expression Regulation, NeoplasticCarcinoembryonic AntigenLeucovorinNeoplasms, Second PrimaryNeoplasm InvasivenessLung NeoplasmsMass ScreeningMicrosatellite RepeatsEarly Detection of CancerCase-Control StudiesKidney NeoplasmsCamptothecinGastrointestinal NeoplasmsRisk FactorsMutationMutS Homolog 2 ProteinIntestinal MucosaHT29 CellsColectomyRetrospective StudiesGenes, 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 ProteinAdenocarcinoma, PapillaryProto-Oncogene Proteins