Neuroectodermal TumorsNeuroectodermal Tumors, PrimitiveNeuroectodermal Tumors, Primitive, PeripheralNeuroectodermal Tumor, MelanoticSarcoma, EwingMedulloblastomaNeural PlateCerebellar NeoplasmsSupratentorial NeoplasmsRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1Brain NeoplasmsNeoplasms, Nerve TissueChromosomes, Human, Pair 22PinealomaEctodermNeuroblastomaEpendymomaSarcoma, Small CellSpinal Cord NeoplasmsMaxillary NeoplasmsBone NeoplasmsRhabdoid TumorCentral Nervous System NeoplasmsNervous SystemOrbital NeoplasmsThoracic NeoplasmsNeoplasms, Germ Cell and EmbryonalChromosomes, Human, Pair 11ImmunohistochemistryCell DifferentiationOncogene Proteins, FusionGangliosidesAstrocytomaTeratomaEsthesioneuroblastoma, OlfactoryGanglioneuromaRetinoblastomaIfosfamideNervous System NeoplasmsFatal OutcomeTranslocation, GeneticVincristineTumor Cells, CulturedNestinParaparesisCentral Nervous SystemPeripheral Nervous System NeoplasmsTomography, X-Ray ComputedThoracic WallG(M2) GangliosideSkull NeoplasmsPhosphopyruvate HydrataseNeoplasms, Complex and MixedNeurofilament ProteinsPineal GlandSynaptophysinEye NeoplasmsTranscription FactorsChromosomes, Human, Pair 17Tumor Markers, BiologicalEtoposideCranial IrradiationAbdominal NeoplasmsGene Expression Regulation, DevelopmentalThoracic Surgical ProceduresEmbryonic Stem CellsAntigens, NeoplasmGenes, mycSarcoma, Clear CellSpinal NeoplasmsMagnetic Resonance ImagingSOXB1 Transcription FactorsNeuronsRhabdomyosarcomaCombined Modality TherapyCell LineageLomustineCyclophosphamideGlial Fibrillary Acidic ProteinMelanomaMolecular Sequence DataImmunoenzyme TechniquesSarcoma, SynovialDNA-Binding ProteinsAntibodies, MonoclonalIntermediate Filament ProteinsNose NeoplasmsReverse Transcriptase Polymerase Chain ReactionSarcomaGliomaBase SequenceEmbryo, NonmammalianIn Situ Hybridization, FluorescenceRNA, MessengerThiotepaRetroperitoneal NeoplasmsSoft Tissue NeoplasmsGene AmplificationDNA, Neoplasm