Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralNeuroectodermal Tumor, MelanoticSarcoma, EwingMedulloblastomaBrain NeoplasmsCerebellar NeoplasmsSupratentorial NeoplasmsProto-Oncogene Protein c-fli-1RNA-Binding Protein EWSPinealomaChromosomes, Human, Pair 22EpendymomaSpinal Cord NeoplasmsSarcoma, Small CellBone NeoplasmsNeuroblastomaRhabdoid TumorMaxillary NeoplasmsTumor Markers, BiologicalNeoplasms, Germ Cell and EmbryonalThoracic NeoplasmsCentral Nervous System NeoplasmsImmunohistochemistryAstrocytomaNeural PlateChromosomes, Human, Pair 11Oncogene Proteins, FusionMagnetic Resonance ImagingBrain ChemistryOrbital NeoplasmsTomography, X-Ray ComputedVincristineIfosfamideCell Line, TumorFatal OutcomeTranslocation, GeneticSkull NeoplasmsGanglioneuromaBrain InjuriesParaparesisThoracic WallGliomaTeratomaNeoplasms, Nerve TissuePeripheral Nervous System NeoplasmsTumor Necrosis Factor-alphaTumor BurdenPineal GlandCombined Modality TherapyEtoposideAntigens, NeoplasmNeurofilament ProteinsCranial IrradiationChromosomes, Human, Pair 17RhabdomyosarcomaTumor Cells, CulturedAbdominal NeoplasmsRetinoblastomaThoracic Surgical ProceduresDNA, NeoplasmGangliosidesPhosphopyruvate HydrataseCyclophosphamideRNA, MessengerBrainSynaptophysinBrain MappingLomustineSoft Tissue NeoplasmsIn Situ Hybridization, FluorescenceGenes, mycTreatment OutcomeAntineoplastic Combined Chemotherapy ProtocolsMolecular Sequence DataPolymerase Chain ReactionReverse Transcriptase Polymerase Chain ReactionTranscription FactorsCell DivisionCell DifferentiationNeoplasm ProteinsAntibodies, MonoclonalCell Transformation, NeoplasticNeoplasm Recurrence, LocalThiotepaEctodermBase SequenceImmunoenzyme TechniquesWilms TumorTime FactorsGene AmplificationGene Expression Regulation, NeoplasticNeoplasms, ExperimentalDisease ProgressionGenes, Tumor SuppressorGlial Fibrillary Acidic ProteinBiopsy, NeedleSurvival AnalysisPrognosis