Esophagus - Sarcoma - general. ... Synovial sarcoma (SS): malignant mesenchymal tumor showing epithelial differentiation, either overtly (biphasic SS) or by ...AuthorsBlogBoardReviewCommentContactUsNewslettersStatisticsTestimonialsSeeElsevier'snewvideoabouttheirClinicReviewArticlesonourhomepageorclickhere.JobsFellowshipsConferences/WebinarsBooksCMECasesAdvertiseGrantsMedicalNewsLibrariesRocheCompanionDiagnosticLibraryRocheNTRKIHCDiagnosticLibraryCOVID-19LibraryPandemicreliefmusicawardHome>Esophagus>Sarcoma-generalEsophagusOthertumorsSarcoma-generalAuthors: FeriylBhaijee,M.D.,IsrahAkhtar,M.D.TopicCompleted:2December2013Minorchanges:30March2021Copyright:2003-2021,PathologyOutlines.com,Inc.PubMedSearch:Sarcoma[title]esophagusPageviewsin2020:4,119Pageviewsin2021todate:1,568TableofContentsDefinition/general|Epidemiology|Sites|Clinicalfeatures|Diagnosis|Radiologydescription|Radiologyimages|Prognosticfactors|Treatment|Clinicalimages|Grossdescription|Grossimages|Microscopic(histologic)description|Microscopic(histologic)images|Positivestains|Flowcytometrydescription|Electronmicroscopydescription|Molecular/cytogeneticsdescription|Differentialdiagnosis|AdditionalreferencesCitethispage:BhaijeeF,AkhtarI.Sarcoma-general.PathologyOutlines.comwebsite.https://www.pathologyoutlines.com/topic/esophagussarcomagen.html.AccessedApril13th,2021.Definition/generalMalignantmesenchymaltumorsoftheesophaguswithvariabledegreesofdifferentiation,biologicbehaviorandprognosisExamplesAngiosarcoma:highgrademalignancyofendothelialcellsEwingsarcoma:highlymalignantsmallroundbluecelltumorcharacterizedbyrecurrentchromosomaltranslocations[t(11;22)EWSR1-FLI1ort(21;22)EWSR1-ERG]andmembranousMIC2/CD99overexpressionFibrosarcoma:spindlecellneoplasmoflowgradetointermediategrademalignancyGastrointestinalstromaltumor(GIST):mesenchymaltumorofdigestivetract,likelyoriginatingfrommultipotentialprogenitorsofinterstitialcellsofCajalHemangiopericytoma(solitaryfibroustumor):ubiquitousmesenchymaltumorshowinguncertainlineofd