Epithelioid Sarcoma · nodular pattern with central necrosis within granulomatous areas · epithelial appearance with ovoid or polygonal cells with ...PathologyPathologyIntroductionHigh-YieldTopicsBoneTumorStagingSystemsImpendingFracture&ProphylacticFixationBiopsyPrinciplesChemotherapyRadiationTherapyDifferentialGroupsBoneTumorsOsteogenicTumorsOsteoidOsteomaOsteoblastomaIntramedullaryOsteosarcomaParostealOsteosarcomaPeriostealOsteosarcomaTelangiectaticOsteosarcomaChondrogenicTumorsEnchondromasPeriostealChondromasOsteochondroma&MultipleHereditaryExostosisChondroblastomaChondromyxoidFibromaChondrosarcomaHematopoieticMultipleMyelomaLymphomaLeukemiaFibrogenic&HistiocyticNon-OssifyingFibromaHistiocytoma(BenignFibrousHistiocytoma)DesmoplasticFibromaMalignantFibrousHistiocytoma(PleomorphicSarcoma)FibrosarcomaofBoneNotochordal&VascularChordomaHemangiomaHemangioendothelioma(hemangiosarcoma)ReactiveLesionsUnicameralBoneCystAneurysmalBoneCystTumor-likelesionsFibrousDysplasiaOsteofibrousDysplasiaPaget'sDiseaseEosinophilicGranulomaMyositisOssificansMelorheostosisHeterotopicOssificationTumoralCalcinosisBoneInfarctFocalFibrocartilaginousDysplasiaUnknownOrignGiantCellTumorEwing'sSarcomaAdamantinomaMetastaticdiseaseMetastaticDiseaseofExtremityMetastaticDiseaseofSpineSoftTissueTumorsSoftTissueSarcomaSoftTissueSarcomaSynovialTissuePigmentedVillonodularSynovitisSynovialChondromatosisSynovialSarcomaPeripheralNervesNeurilemmomaNeuromaMalignantPeripheralNerveSheathTumorNeurofibromaNeuroblastomaMuscleTumorsLeiomyosarcomaRhabdomyosarcomaFibrogenicCalicifyingAponeuroticFibromaPlantarFibromatosis(LedderhoseDisease)Extra-abdominalDesmoidTumorNodularFasciitisUndifferentiatedPleomorphicSarcomaFibrosarcomaofSoftTissueDermatofibrosarcomaProtuberansLipogenicLipomasLiposarcomaVascularTissueHemangiomaofSoftTissueAngiosarcomaDermatologicSquamousCellCarcinomaGlomusTumorActinicKeratosisBasalCellCarcinomaMelanomaOtherEpithelioidSarcomaIntramuscularMyxomasOtherPathologyTopicsUpdated:11/22/20200EpithelioidSa