Carcinoma, Signet Ring CellAdenocarcinomaAdenocarcinoma, MucinousStomach NeoplasmsCell DifferentiationImmunohistochemistryLung NeoplasmsAppendiceal NeoplasmsPancreatic NeoplasmsEsophageal NeoplasmsAdenocarcinoma, PapillaryCarcinoma, Pancreatic DuctalBarrett EsophagusAdenocarcinoma, Bronchiolo-AlveolarColonic NeoplasmsTumor Markers, BiologicalUmbilicusNeoplasm StagingPrognosisCardiaGastrectomyCarcinomaMucinsColorectal NeoplasmsAlcian BlueEmbryonic Stem CellsMicrosatellite InstabilityTumor Cells, CulturedStem CellsCell Line, TumorNeoplasm InvasivenessGene Expression Regulation, NeoplasticRectal NeoplasmsGallbladder NeoplasmsTeratomaEsophagogastric JunctionCarcinoma, Squamous Cellras ProteinsCadherinsRNA, MessengerCell LineRare DiseasesMutationEndometrial NeoplasmsReverse Transcriptase Polymerase Chain ReactionGastric MucosaCell ProliferationKeratin-7HistocytochemistrySurvival AnalysisNeoplasms, Multiple PrimaryPeritoneal NeoplasmsLoss of HeterozygosityProto-Oncogene Proteins B-rafPrecancerous ConditionsIntestinal NeoplasmsRetrospective StudiesSpermatogoniaCarcinoma, EndometrioidImmunoenzyme TechniquesMetaplasiaTranscription FactorsProstatic NeoplasmsOctamer Transcription Factor-3Embryonal Carcinoma Stem CellsNeoplasm ProteinsEndoscopy, GastrointestinalGene Expression ProfilingNuclear ProteinsAdenocarcinoma, Clear CellProto-Oncogene ProteinsTissue Array AnalysisMammary Neoplasms, ExperimentalCells, CulturedCell DivisionBase SequenceKeratinsDuodenal NeoplasmsTime FactorsDNA Mutational AnalysisNeoplasm TransplantationCecal NeoplasmsGenes, rasMolecular Sequence DataDNA, NeoplasmMicrosatellite RepeatsPyloric AntrumAdenomaDisease ProgressionCell Transformation, NeoplasticNasopharyngeal NeoplasmsMice, NudeGene ExpressionLymphatic MetastasisParanasal Sinus NeoplasmsDNA-Binding ProteinsSignal TransductionSurvival RatePluripotent Stem CellsNeoplasm Metastasis