Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralNeuroectodermal Tumor, MelanoticSarcoma, EwingMedulloblastomaCerebellar NeoplasmsSupratentorial NeoplasmsBrain NeoplasmsProto-Oncogene Protein c-fli-1RNA-Binding Protein EWSPinealomaChromosomes, Human, Pair 22EpendymomaSpinal Cord NeoplasmsBone NeoplasmsMaxillary NeoplasmsSarcoma, Small CellNeuroblastomaRhabdoid TumorTumor Markers, BiologicalNeoplasms, Germ Cell and EmbryonalThoracic NeoplasmsCentral Nervous System NeoplasmsImmunohistochemistryChromosomes, Human, Pair 11AstrocytomaOrbital NeoplasmsNeural PlateOncogene Proteins, FusionTomography, X-Ray ComputedFatal OutcomeVincristineNeoplasmsSkull NeoplasmsIfosfamideCell Line, TumorTranslocation, GeneticDNA, NeoplasmGanglioneuromaAntigens, NeoplasmPeripheral Nervous System NeoplasmsParaparesisThoracic WallNeoplasms, Nerve TissueTeratomaAbdominal NeoplasmsSoft Tissue NeoplasmsPancreatic NeoplasmsCombined Modality TherapyMagnetic Resonance ImagingRhabdomyosarcomaEtoposideGliomaTumor Necrosis Factor-alphaTumor BurdenChromosomes, Human, Pair 17Pineal GlandRetinoblastomaTumor Cells, CulturedNeurofilament ProteinsNeoplasm ProteinsCranial IrradiationThoracic Surgical ProceduresNeoplasms, ExperimentalCyclophosphamideIn Situ Hybridization, FluorescenceNeoplasm Recurrence, LocalSynaptophysinPhosphopyruvate HydrataseGangliosidesTreatment OutcomeGenes, mycLomustineAntineoplastic Combined Chemotherapy ProtocolsReverse Transcriptase Polymerase Chain ReactionCell Transformation, NeoplasticPolymerase Chain ReactionWilms TumorImmunoenzyme TechniquesCell DivisionRNA, MessengerTranscription FactorsSkin NeoplasmsGene Expression Regulation, NeoplasticAntibodies, MonoclonalCell DifferentiationThiotepaEctodermBiopsy, NeedleGene AmplificationGenes, Tumor SuppressorPrognosisBiopsyCarcinoid TumorDisease ProgressionKidney NeoplasmsMolecular Sequence DataBase SequenceSurvival Analysis