Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralNeuroectodermal Tumor, MelanoticSarcoma, EwingMedulloblastomaLipomaCerebellar NeoplasmsPalatal NeoplasmsSupratentorial NeoplasmsCystadenomaBrain NeoplasmsProto-Oncogene Protein c-fli-1RNA-Binding Protein EWSAdenoma, PleomorphicMandibular NeoplasmsNeurilemmomaTomography, X-Ray ComputedPinealomaChromosomes, Human, Pair 22ImmunohistochemistryEpendymomaSpinal Cord NeoplasmsBone NeoplasmsSkin NeoplasmsMaxillary NeoplasmsSarcoma, Small CellMagnetic Resonance ImagingNeuroblastomaRhabdoid TumorTumor Markers, BiologicalNeoplasms, Germ Cell and EmbryonalThoracic NeoplasmsCentral Nervous System NeoplasmsRetrospective StudiesChromosomes, Human, Pair 11AstrocytomaOrbital NeoplasmsNeural PlateOncogene Proteins, FusionFatal OutcomeVincristineNeoplasmsSkull NeoplasmsIfosfamideCell Line, TumorTranslocation, GeneticDNA, NeoplasmGanglioneuromaAntigens, NeoplasmPeripheral Nervous System NeoplasmsParaparesisThoracic WallNeoplasms, Nerve TissueTeratomaAbdominal NeoplasmsSoft Tissue NeoplasmsPancreatic NeoplasmsCombined Modality TherapyRhabdomyosarcomaEtoposideGliomaTumor 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 FactorsGene Expression Regulation, NeoplasticAntibodies, MonoclonalCell DifferentiationThiotepaEctodermBiopsy, NeedleGene AmplificationGenes, Tumor SuppressorPrognosis