Esophagogastric JunctionEsophageal NeoplasmsEsophagectomyCardiaManometryEsophagostomyHernia, HiatalEsophageal AchalasiaAdenocarcinomaStomach NeoplasmsEsophageal Sphincter, LowerBarrett EsophagusDeglutitionEsophageal Motility DisordersGastrectomyMetaplasiaPeristalsisEsophagusFundoplicationEndoscopy, GastrointestinalGap JunctionsPressureGastroesophageal RefluxIntercellular JunctionsTight JunctionsEsophageal StenosisMucous MembraneLymph Node ExcisionNeoplasm StagingNeoadjuvant TherapyAnastomosis, SurgicalEsophageal and Gastric VaricesPrognosisTreatment OutcomeStomachDilatationSurvival RateLymphatic MetastasisDidelphisAdherens JunctionsNeuromuscular JunctionEsophageal FistulaEsophageal DiseasesGastric FistulaCombined Modality TherapyFollow-Up StudiesPostoperative ComplicationsSurgical StaplersGastrointestinal HemorrhageGastrostomyManubriumHypertension, PortalSplenorenal Shunt, SurgicalDeglutition Disorders