Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsRadiation ToleranceNeuroectodermal Tumors, Primitive, PeripheralNeuroectodermal Tumor, MelanoticSarcoma, EwingMedulloblastomaCerebellar NeoplasmsBrain NeoplasmsSupratentorial NeoplasmsProto-Oncogene Protein c-fli-1RNA-Binding Protein EWSPinealomaTumor Markers, BiologicalEpendymomaChromosomes, Human, Pair 22Radiation DosageRadiation, IonizingBone NeoplasmsRhabdoid TumorSpinal Cord NeoplasmsNeuroblastomaSarcoma, Small CellCell Line, TumorMaxillary NeoplasmsTumor BurdenRadiation InjuriesTumor Necrosis Factor-alphaNeoplasms, Germ Cell and EmbryonalThoracic NeoplasmsCentral Nervous System NeoplasmsDose-Response Relationship, RadiationImmunohistochemistryAstrocytomaTomography, X-Ray ComputedCombined Modality TherapyChromosomes, Human, Pair 11Wilms TumorRadiationOncogene Proteins, FusionNeural PlateNeoplasms, ExperimentalOrbital NeoplasmsVincristineFatal OutcomeGliomaAntigens, NeoplasmGenes, Tumor SuppressorTumor Suppressor Protein p53IfosfamideDNA, NeoplasmCarcinoid TumorRadiation ProtectionSkull NeoplasmsTranslocation, GeneticMagnetic Resonance ImagingTreatment OutcomeRadiation MonitoringThoracic WallTeratomaTumor Suppressor ProteinsGanglioneuromaParaparesisRhabdomyosarcomaCell DivisionNeuroendocrine TumorsNeoplasmsNeoplasm Recurrence, LocalNeoplasm ProteinsCranial IrradiationNeoplasms, Nerve TissueEtoposideReverse Transcriptase Polymerase Chain ReactionCell Transformation, NeoplasticRNA, MessengerAntineoplastic Combined Chemotherapy ProtocolsRetinoblastomaTumor MicroenvironmentAntibodies, MonoclonalSoft Tissue NeoplasmsChromosomes, Human, Pair 17Pineal GlandCyclophosphamidePeripheral Nervous System NeoplasmsTumor Cells, CulturedMammary Neoplasms, ExperimentalTime FactorsNeoplasm MetastasisAbdominal NeoplasmsIn Situ Hybridization, FluorescencePolymerase Chain ReactionMolecular Sequence DataDisease ProgressionGene Expression Regulation, NeoplasticNeovascularization, PathologicNeurofilament ProteinsAdenocarcinomaThoracic Surgical ProceduresSurvival AnalysisImmunoenzyme Techniques