AdenocarcinomaEsophagusBarrett EsophagusEsophageal NeoplasmsEsophagoscopyCardiaEsophagogastric JunctionAdenocarcinoma, MucinousLung NeoplasmsStomach NeoplasmsEsophageal DiseasesMetaplasiaPancreatic NeoplasmsEsophagectomyAdenocarcinoma, PapillaryPrecancerous ConditionsCarcinoma, Pancreatic DuctalAdenocarcinoma, Bronchiolo-AlveolarEsophageal StenosisGastroesophageal RefluxImmunohistochemistryCarcinoma, Squamous CellTumor Markers, BiologicalMucous MembraneEsophagitisEsophagoplastyColonic NeoplasmsEsophagitis, PepticNeoplasm StagingPrognosisKeratin-7Gene Expression Regulation, NeoplasticEsophageal PerforationNeoplasms, Multiple PrimaryPeristalsisCell Line, TumorManometryBiopsyIntestinal NeoplasmsEndoscopy, GastrointestinalEsophageal FistulaEndometrial NeoplasmsDisease ProgressionEndoscopy, Digestive SystemRetrospective StudiesStomachNeoplasm InvasivenessGastrointestinal NeoplasmsGastrectomySurvival RateHernia, HiatalDimethylnitrosamineTumor Cells, CulturedEsophageal Sphincter, LowerImmunoenzyme TechniquesLymphatic MetastasisEndoscopyTreatment OutcomeKeratin-20Deglutition DisordersProstatic NeoplasmsDeglutitionDuodenal NeoplasmsHypopharynxCarcinoma, Signet Ring CellDNA, NeoplasmCarcinoma, EndometrioidEsophageal AchalasiaFatal OutcomeCecal NeoplasmsMammary Neoplasms, ExperimentalAdenocarcinoma, Clear CellEsophagoscopesDuodenogastric RefluxCase-Control StudiesTissue Array AnalysisCausticsGastric MucosaSurvival AnalysisRisk FactorsColorectal NeoplasmsRectal NeoplasmsCell Transformation, NeoplasticDigestive System NeoplasmsNeoplasm ProteinsMucin-2RNA, MessengerAmpulla of VaterGenes, rasCommon Bile Duct NeoplasmsNeoplasm MetastasisNitrosaminesTomography, X-Ray ComputedReverse Transcriptase Polymerase Chain ReactionIleal NeoplasmsTumor Suppressor Protein p53AdenomaFundoplicationCombined Modality TherapyKeratins