Neoplasms, NeuroepithelialNeuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralGangliogliomaNeuroectodermal Tumor, MelanoticBrain NeoplasmsTeratomaSarcoma, EwingMedulloblastomaCerebellar NeoplasmsMagnetic Resonance ImagingSupratentorial NeoplasmsEpilepsyProto-Oncogene Protein c-fli-1RNA-Binding Protein EWSNeuroblastomaPinealomaChromosomes, Human, Pair 22EpendymomaSpinal Cord NeoplasmsSarcoma, Small CellBone NeoplasmsMaxillary NeoplasmsRhabdoid TumorTumor Markers, BiologicalNeoplasms, Germ Cell and EmbryonalThoracic NeoplasmsCentral Nervous System NeoplasmsImmunohistochemistryCell Line, TumorTomography, X-Ray ComputedChromosomes, Human, Pair 11Neural PlateOncogene Proteins, FusionAstrocytomaFatal OutcomeOrbital NeoplasmsVincristineIfosfamideTumor Cells, CulturedTranslocation, GeneticSkull NeoplasmsGanglioneuromaParaparesisThoracic WallGangliosidesPeripheral Nervous System NeoplasmsNeoplasms, Nerve TissueCombined Modality TherapyTumor BurdenAntigens, NeoplasmEtoposideTumor Necrosis Factor-alphaRhabdomyosarcomaAbdominal NeoplasmsPineal GlandChromosomes, Human, Pair 17Cell DifferentiationGliomaTreatment OutcomeRetinoblastomaNeurofilament ProteinsCranial IrradiationDNA, NeoplasmReverse Transcriptase Polymerase Chain ReactionThoracic Surgical ProceduresPolymerase Chain ReactionRNA, MessengerCyclophosphamideSoft Tissue Neoplasms