Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralSarcoma, EwingMedulloblastomaCerebellar NeoplasmsSupratentorial NeoplasmsBrain NeoplasmsRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1Neuroectodermal Tumor, MelanoticPinealomaEpendymomaSpinal Cord NeoplasmsChromosomes, Human, Pair 22Sarcoma, Small CellRhabdoid TumorBone NeoplasmsCentral Nervous System NeoplasmsOrbital NeoplasmsThoracic NeoplasmsIfosfamideOncogene Proteins, FusionNeuroblastomaParaparesisFatal OutcomeThoracic WallVincristineImmunohistochemistryPrimitive StreakAstrocytomaNeoplasms, Germ Cell and EmbryonalTomography, X-Ray ComputedChromosomes, Human, Pair 17TeratomaNeural PlateAbdominal NeoplasmsEtoposideChromosomes, Human, Pair 11Combined Modality TherapyTumor Markers, BiologicalTranslocation, GeneticCranial IrradiationPineal GlandSynaptophysinNeurofilament ProteinsAntineoplastic Combined Chemotherapy ProtocolsTumor Cells, CulturedLomustineCyclophosphamideMagnetic Resonance ImagingThiotepaCell DifferentiationIn Situ Hybridization, FluorescenceDNA, NeoplasmNeoplasms, Nerve TissueReverse Transcriptase Polymerase Chain ReactionGene Expression Regulation, NeoplasticRhabdomyosarcomaPrognosisSurvival AnalysisPolymerase Chain ReactionSoft Tissue NeoplasmsTranscription FactorsGene AmplificationEctodermNeoplasm Recurrence, LocalEarly Detection of CancerGene RearrangementSurvival RateDisease ProgressionTreatment OutcomeDisease-Free SurvivalBiopsyMolecular Sequence DataDNA-Binding Proteins