Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralNeuroectodermal Tumor, MelanoticSarcoma, EwingMedulloblastomaCerebellar NeoplasmsSupratentorial NeoplasmsBrain NeoplasmsProto-Oncogene Protein c-fli-1RNA-Binding Protein EWSPinealomaChromosomes, Human, Pair 22EpendymomaRadiation DosageRadiation, IonizingSpinal Cord NeoplasmsSarcoma, Small CellBone NeoplasmsNeuroblastomaMaxillary NeoplasmsRhabdoid TumorRadiation InjuriesTumor Markers, BiologicalThoracic NeoplasmsNeoplasms, Germ Cell and EmbryonalCentral Nervous System NeoplasmsDose-Response Relationship, RadiationRadiation ToleranceNeural PlateRadiationChromosomes, Human, Pair 11AstrocytomaTomography, X-Ray ComputedImmunohistochemistryOncogene Proteins, FusionCombined Modality TherapyOrbital NeoplasmsCell Line, TumorVincristineIfosfamideRadiation ProtectionFatal OutcomeRadiation MonitoringTranslocation, GeneticSkull NeoplasmsThoracic WallGanglioneuromaParaparesisCranial IrradiationTumor BurdenTeratomaGliomaNeoplasms, Nerve TissueEtoposidePeripheral Nervous System NeoplasmsTumor Cells, CulturedMagnetic Resonance ImagingTumor Necrosis Factor-alphaAbdominal NeoplasmsAntigens, NeoplasmRhabdomyosarcomaPineal GlandChromosomes, Human, Pair 17RetinoblastomaDNA, NeoplasmNeurofilament ProteinsTreatment OutcomeThoracic Surgical ProceduresCyclophosphamideAntineoplastic Combined Chemotherapy ProtocolsSoft Tissue NeoplasmsNeoplasm Recurrence, LocalLomustineGangliosidesIn Situ Hybridization, FluorescencePhosphopyruvate HydrataseGenes, mycSynaptophysinRadiation OncologyReverse Transcriptase Polymerase Chain ReactionCell DivisionNeoplasmsRNA, MessengerNeoplasm ProteinsCell Transformation, NeoplasticAntibodies, MonoclonalPolymerase Chain ReactionTranscription FactorsWilms TumorThiotepaMolecular Sequence DataEctodermSurvival AnalysisCell DifferentiationNeoplasms, ExperimentalGene Expression Regulation, NeoplasticTime FactorsImmunoenzyme TechniquesTumor Suppressor Protein p53