Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsRadiation ToleranceNeuroectodermal Tumors, Primitive, PeripheralNeuroectodermal Tumor, MelanoticSarcoma, EwingMedulloblastomaCerebellar NeoplasmsBrain NeoplasmsSupratentorial NeoplasmsProto-Oncogene Protein c-fli-1RNA-Binding Protein EWSTumor Markers, BiologicalPinealomaEpendymomaBone NeoplasmsChromosomes, Human, Pair 22Cell Line, TumorRadiation DosageNeuroblastomaRadiation, IonizingRhabdoid TumorSpinal Cord NeoplasmsTumor BurdenSarcoma, Small CellMaxillary NeoplasmsNeoplasms, Germ Cell and EmbryonalRadiation InjuriesImmunohistochemistryThoracic NeoplasmsTumor Necrosis Factor-alphaCentral Nervous System NeoplasmsNeoplasm MetastasisCombined Modality TherapyTomography, X-Ray ComputedDose-Response Relationship, RadiationAstrocytomaChromosomes, Human, Pair 11Neoplasms, ExperimentalDNA, NeoplasmGenes, Tumor SuppressorWilms TumorNeoplasm Recurrence, LocalAntigens, NeoplasmFatal OutcomeOncogene Proteins, FusionOrbital NeoplasmsTumor Suppressor Protein p53RadiationTreatment OutcomeVincristineGliomaNeural PlateIfosfamideCarcinoid TumorNeoplasm ProteinsNeoplasmsPrognosisGene Expression Regulation, NeoplasticRhabdomyosarcomaAdenocarcinomaNeoplasm StagingTumor Cells, CulturedMammary Neoplasms, ExperimentalSkull NeoplasmsReverse Transcriptase Polymerase Chain ReactionMagnetic Resonance ImagingAntineoplastic Combined Chemotherapy ProtocolsTranslocation, GeneticTumor Suppressor ProteinsRNA, MessengerCell DivisionRadiation ProtectionThoracic WallNeuroendocrine TumorsSurvival AnalysisTeratomaCell Transformation, NeoplasticGanglioneuromaRadiation MonitoringDisease ProgressionLymphatic MetastasisSoft Tissue NeoplasmsTumor MicroenvironmentAntibodies, MonoclonalEtoposideRetinoblastomaCranial IrradiationTime FactorsIn Situ Hybridization, FluorescenceSurvival RateParaparesisNeovascularization, PathologicBreast NeoplasmsCarcinoma, Squamous CellAbdominal NeoplasmsChromosomes, Human, Pair 17Immunoenzyme TechniquesPolymerase Chain ReactionCyclophosphamide