Esophagogastric JunctionEsophageal NeoplasmsCardiaEsophagectomyManometryEsophagostomyHernia, HiatalEsophageal AchalasiaAdenocarcinomaStomach NeoplasmsEsophageal Sphincter, LowerBarrett EsophagusDeglutitionEsophageal Motility DisordersGastrectomyMetaplasiaPeristalsisEsophagusFundoplicationEndoscopy, GastrointestinalGap JunctionsPressureGastroesophageal RefluxIntercellular JunctionsTight JunctionsMucous MembraneEsophageal StenosisLymph Node ExcisionNeoadjuvant TherapyNeoplasm StagingAnastomosis, SurgicalEsophageal and Gastric VaricesDilatationStomachDidelphisAdherens JunctionsPrognosisLymphatic MetastasisNeuromuscular JunctionEsophageal FistulaSurvival RateEsophageal DiseasesGastric FistulaCombined Modality TherapySurgical StaplersGastrointestinal HemorrhageGastrostomyManubriumHypertension, PortalFollow-Up StudiesTreatment OutcomeSplenorenal Shunt, SurgicalDeglutition Disorders