Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralSoft Tissue NeoplasmsSarcoma, EwingMedulloblastomaCerebellar NeoplasmsSupratentorial NeoplasmsNeuroectodermal Tumor, MelanoticBrain NeoplasmsRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1Bone NeoplasmsPinealomaSarcomaEpendymomaSpinal Cord NeoplasmsLipomaChromosomes, Human, Pair 22Thoracic NeoplasmsSarcoma, Small CellRhabdoid TumorCentral Nervous System NeoplasmsNeoplasms, Post-TraumaticFibromaLeiomyosarcomaFibromatosis, AggressiveRhabdomyosarcomaNeoplasms, Bone TissueTumor Markers, BiologicalHistiocytoma, Malignant FibrousTomography, X-Ray ComputedOncogene Proteins, FusionHistiocytoma, Benign FibrousImmunohistochemistryNeoplasms, Fibrous TissueOrbital NeoplasmsIfosfamideNeuroblastomaMagnetic Resonance ImagingFatal OutcomeParaparesisThoracic WallVincristineNeoplasms, Germ Cell and EmbryonalAstrocytomaSarcoma, SynovialGiant Cell TumorsTranslocation, GeneticChromosomes, Human, Pair 11Muscle NeoplasmsAbdominal NeoplasmsChromosomes, Human, Pair 17TeratomaEtoposideTreatment OutcomePineal GlandCranial IrradiationCombined Modality TherapyLomustineNeurofilament ProteinsLiposarcomaNeoplasm Recurrence, LocalIn Situ Hybridization, FluorescenceCyclophosphamideAngiomyomaMedical Records, Problem-OrientedThiotepaMusculoskeletal SystemPrognosisAntineoplastic Combined Chemotherapy ProtocolsBiopsy, NeedleDermatofibrosarcomaDNA, NeoplasmFibrosarcomaGene Expression Regulation, NeoplasticTumor Cells, CulturedFoot DiseasesSoft Tissue InjuriesRetrospective StudiesGliomaGene RearrangementGardner SyndromeThighNerve Sheath NeoplasmsHemangiosarcomaMaxillary NeoplasmsGene AmplificationPolymerase Chain ReactionCell Line, TumorSoft Tissue InfectionsReverse Transcriptase Polymerase Chain ReactionPelvic NeoplasmsTumor BurdenSurvival AnalysisTumor Necrosis Factor-alphaDisease ProgressionVimentinChromosome DeletionBiopsy