SarcomaPrognosisSarcoma, EwingSarcoma, SynovialSarcoma, KaposiAvian Sarcoma VirusesSarcoma, ExperimentalSarcoma 180Sarcoma Viruses, MurineSoft Tissue NeoplasmsSarcoma, AvianHistiocytic SarcomaSarcoma, MyeloidSarcoma, Endometrial StromalSarcoma, Clear CellSarcoma, YoshidaKirsten murine sarcoma virusMoloney murine sarcoma virusSarcoma Viruses, FelineBone NeoplasmsRous sarcoma virusSurvival AnalysisTumor Markers, BiologicalLeiomyosarcomaOsteosarcomaSurvival RateImmunohistochemistryRNA-Binding Protein EWSSarcoma, Alveolar Soft PartRetrospective StudiesNeoplasm StagingTreatment OutcomeHerpesvirus 8, HumanFollow-Up StudiesAlpharetrovirusProto-Oncogene Protein c-fli-1Cell Transformation, ViralRhabdomyosarcomaHarvey murine sarcoma virusKaplan-Meier EstimateHistiocytoma, Malignant FibrousCell Transformation, NeoplasticLiposarcomaNeoplasm Recurrence, LocalGammaretrovirusDisease-Free SurvivalOncogene Proteins, FusionGene Expression Regulation, NeoplasticTime FactorsCombined Modality TherapyCell Line, TumorSarcoma 37Vascular NeoplasmsLung NeoplasmsHistiocytoma, Benign FibrousBreast NeoplasmsMultivariate AnalysisNeoplasm MetastasisRetroperitoneal NeoplasmsProportional Hazards ModelsIfosfamideLymphatic MetastasisHemangiosarcomaPredictive Value of TestsNeoplasm InvasivenessSarcoma, Small CellLangerhans Cell SarcomaDisease ProgressionDoxorubicinChick EmbryoSkin NeoplasmsFatal OutcomeProspective StudiesMuscle NeoplasmsAntineoplastic Combined Chemotherapy ProtocolsAntineoplastic AgentsRisk FactorsNeoplasm ProteinsTomography, X-Ray ComputedAdenocarcinomaDendritic Cell Sarcoma, FollicularHelper VirusesNeuroectodermal Tumors, Primitive, PeripheralChondrosarcomaMutationLiver NeoplasmsBase SequenceFibrosarcomaAvian leukosis virusRetroviridaeExtremitiesGene Expression ProfilingReverse Transcriptase Polymerase Chain ReactionTranslocation, GeneticTissue Array AnalysisNeoplasm TransplantationCarcinomaNeoplasmsCohort StudiesMoloney murine leukemia virus