EsophagectomyGastrointestinal NeoplasmsEsophagusEsophageal NeoplasmsBarrett EsophagusStomach NeoplasmsAdenocarcinomaEsophagoscopyThoracoscopyCarcinoma, Squamous CellPancreatic NeoplasmsEsophageal StenosisEsophageal DiseasesTreatment OutcomeDigestive System NeoplasmsColorectal NeoplasmsEsophagostomyRetrospective StudiesAnastomosis, SurgicalNeoplasm StagingEsophagoplastyCombined Modality TherapyEsophagogastric JunctionPostoperative ComplicationsColonic NeoplasmsSurvival RatePrognosisRectal NeoplasmsUpper Gastrointestinal TractThoracotomyEsophageal FistulaFollow-Up StudiesGastric FistulaFluorouracilAnastomotic LeakCarcinomaPrecancerous ConditionsSurvival AnalysisLymph Node ExcisionLaparoscopyCongresses as TopicAntineoplastic Combined Chemotherapy ProtocolsAngiotensinogenCardiaProspective StudiesMetaplasiaNeoplasmsLiver NeoplasmsDihydrouracil Dehydrogenase (NADP)Tumor Markers, BiologicalLung NeoplasmsEsophageal AchalasiaGastrectomyAppetite StimulantsNeoplasm MetastasisNeoplasm Recurrence, LocalCationsAntigens, Tumor-Associated, CarbohydrateGastroesophageal RefluxGene Expression Regulation, NeoplasticChemotherapy, AdjuvantJejunostomyThoracoscopesLyeHepatectomySurgical StaplingAntineoplastic AgentsRationalizationTime FactorsCell Line, TumorGastrostomyHernia, HiatalEarly Detection of CancerEnteral NutritionMucous MembraneCarcinoembryonic AntigenIntestinal NeoplasmsEndoscopy, GastrointestinalReconstructive Surgical ProceduresMedical OncologyIranEndoscopy, Digestive SystemAsbestosEndoscopyTomography, X-Ray ComputedNeoplasm SeedingCachexiaNeoplasm ProteinsIncidenceDuodenoscopesNeoadjuvant TherapyRadiotherapy, AdjuvantDigestive System Surgical ProceduresDisease ProgressionThoracic Surgery, Video-AssistedGenetic Predisposition to DiseaseHuman DevelopmentDeoxycytidineImmunohistochemistryTracheoesophageal Fistula