Esophagogastric JunctionEsophageal NeoplasmsCardiaEsophagectomyManometryEsophagostomyHernia, HiatalStomach NeoplasmsAdenocarcinomaEsophageal AchalasiaEsophageal Sphincter, LowerBarrett EsophagusDeglutitionEsophageal Motility DisordersGastrectomyMetaplasiaPeristalsisEsophagusFundoplicationEndoscopy, GastrointestinalGap JunctionsPressureGastroesophageal RefluxIntercellular JunctionsTight JunctionsLymph Node ExcisionMucous MembraneEsophageal StenosisNeoplasm StagingPrognosisSurvival RateNeoadjuvant TherapyAnastomosis, SurgicalEsophageal and Gastric VaricesStomachDilatationAdherens JunctionsDidelphisCombined Modality TherapyLymphatic MetastasisNeuromuscular JunctionEsophageal FistulaEsophageal DiseasesFollow-Up StudiesGastric FistulaTreatment OutcomeSurgical StaplersGastrointestinal HemorrhageGastrostomyManubriumEarly Detection of CancerHypertension, PortalSplenorenal Shunt, SurgicalDeglutition Disorders