Esophagogastric JunctionEsophageal NeoplasmsCardiaEsophagectomyManometryEsophagostomyHernia, HiatalAdenocarcinomaEsophageal AchalasiaStomach NeoplasmsEsophageal Sphincter, LowerBarrett EsophagusDeglutitionEsophageal Motility DisordersGastrectomyNeoplasm MetastasisMetaplasiaPeristalsisLymphatic MetastasisEsophagusFundoplicationEndoscopy, GastrointestinalGap JunctionsPressureGastroesophageal RefluxIntercellular JunctionsLymph Node ExcisionTight JunctionsMucous MembraneNeoplasm StagingEsophageal StenosisPrognosisNeoadjuvant TherapySurvival RateAnastomosis, SurgicalEsophageal and Gastric VaricesStomachDilatationAdherens JunctionsDidelphisCombined Modality TherapyNeuromuscular JunctionEsophageal FistulaEsophageal DiseasesGastric FistulaTreatment OutcomeFollow-Up StudiesSurgical StaplersGastrointestinal HemorrhageGastrostomyManubriumLung NeoplasmsHypertension, PortalSplenorenal Shunt, SurgicalLiver NeoplasmsNeoplasm InvasivenessDeglutition Disorders