Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralNeuroectodermal Tumor, MelanoticSarcoma, EwingMedulloblastomaCerebellar NeoplasmsSupratentorial NeoplasmsBrain NeoplasmsProto-Oncogene Protein c-fli-1RNA-Binding Protein EWSPinealomaChromosomes, Human, Pair 22EpendymomaSarcoma, Small CellSpinal Cord NeoplasmsBone NeoplasmsNeuroblastomaRhabdoid TumorMaxillary NeoplasmsTumor Markers, BiologicalNeoplasms, Germ Cell and EmbryonalThoracic NeoplasmsCentral Nervous System NeoplasmsPrimitive StreakImmunohistochemistryNeural PlateOncogene Proteins, FusionChromosomes, Human, Pair 11AstrocytomaOrbital NeoplasmsVincristineTomography, X-Ray ComputedFatal OutcomeIfosfamideCell Line, TumorTranslocation, GeneticGanglioneuromaPeripheral Nervous System NeoplasmsParaparesisThoracic WallTeratomaSkull NeoplasmsCell DifferentiationNeoplasms, Nerve TissueTumor Necrosis Factor-alphaEtoposideCombined Modality TherapyAntigens, NeoplasmTumor Cells, CulturedPineal GlandNeurofilament ProteinsRhabdomyosarcomaMagnetic Resonance ImagingChromosomes, Human, Pair 17Tumor BurdenAbdominal NeoplasmsCell DivisionPeripheral NervesRNA, MessengerReverse Transcriptase Polymerase Chain ReactionGliomaRetinoblastomaDNA, NeoplasmCyclophosphamideMolecular Sequence DataThoracic Surgical ProceduresCranial IrradiationEctodermPolymerase Chain ReactionTranscription FactorsIn Situ Hybridization, FluorescenceTreatment OutcomeSoft Tissue NeoplasmsPhosphopyruvate HydrataseBase SequenceGangliosidesSynaptophysinAntibodies, MonoclonalAntineoplastic Combined Chemotherapy ProtocolsLomustineGenes, mycTime FactorsNeoplasm ProteinsCell Transformation, NeoplasticThiotepaImmunoenzyme TechniquesWilms TumorNeoplasm Recurrence, LocalDNA-Binding ProteinsHematopoietic Stem CellsCell LineGene AmplificationGene Expression Regulation, NeoplasticDisease ProgressionCells, CulturedPhenotypeBiopsyNeoplasms, ExperimentalPrognosis