Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralNervous System NeoplasmsMedulloblastomaSarcoma, EwingCentral Nervous System NeoplasmsBrain NeoplasmsCerebellar NeoplasmsSupratentorial NeoplasmsNeuroectodermal Tumor, MelanoticEpendymomaSpinal Cord NeoplasmsRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1AstrocytomaPinealomaMeningiomaChromosomes, Human, Pair 22Sarcoma, Small CellRhabdoid TumorGliomaBone NeoplasmsNeuroblastomaNeurofibromatosis 2Thoracic NeoplasmsImmunohistochemistryOrbital NeoplasmsTumor Markers, BiologicalIfosfamideOncogene Proteins, FusionNeurilemmomaFatal OutcomeParaparesisNeoplasms, Germ Cell and EmbryonalVincristineMeningeal NeoplasmsThoracic WallMagnetic Resonance ImagingTomography, X-Ray ComputedChromosomes, Human, Pair 11Chromosomes, Human, Pair 17Abdominal NeoplasmsTeratomaEtoposideTranslocation, GeneticNeurofibromin 2Infant, NewbornGenes, Tumor SuppressorPineal GlandCranial IrradiationPaternal ExposureCell Line, TumorGlioblastomaCombined Modality TherapyNeurofilament ProteinsLomustineNeoplasmsBrain Stem NeoplasmsNeurofibromatosis 1CyclophosphamideRhabdomyosarcomaThiotepaCentral Nervous SystemNeoplasms, Nerve TissueTumor Cells, CulturedDNA, NeoplasmIn Situ Hybridization, FluorescenceSoft Tissue NeoplasmsPolymerase Chain ReactionAntineoplastic Combined Chemotherapy ProtocolsTumor Suppressor ProteinsTreatment OutcomeGene RearrangementReverse Transcriptase Polymerase Chain ReactionRetrospective StudiesTranscription FactorsTumor Suppressor Protein p53Nervous SystemMolecular Sequence DataGene AmplificationMaxillary NeoplasmsGene Expression Regulation, NeoplasticNeoplasm Recurrence, LocalChromosome DeletionTumor Necrosis Factor-alphaDisease ProgressionTumor BurdenFollow-Up StudiesTime FactorsSurvival AnalysisPrognosisDNA-Binding ProteinsChromosome Aberrations