Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsSpinal Cord NeoplasmsNeuroectodermal Tumors, Primitive, PeripheralSarcoma, EwingMedulloblastomaEpendymomaCerebellar NeoplasmsSupratentorial NeoplasmsBrain NeoplasmsSpinal CordNeuroectodermal Tumor, MelanoticLaminectomyRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1Sex Cord-Gonadal Stromal TumorsSpinal Cord InjuriesAstrocytomaPinealomaChromosomes, Human, Pair 22MicrosurgerySarcoma, Small CellRhabdoid TumorMagnetic Resonance ImagingBone NeoplasmsCentral Nervous System NeoplasmsThoracic NeoplasmsNeurosurgical ProceduresMeningiomaOrbital NeoplasmsParaparesisIfosfamideTumor Markers, BiologicalNeuroblastomaFatal OutcomeOncogene Proteins, FusionTreatment OutcomeImmunohistochemistryNeoplasms, Germ Cell and EmbryonalThoracic WallVincristineTomography, X-Ray ComputedSpermatic CordChromosomes, Human, Pair 11Abdominal NeoplasmsChromosomes, Human, Pair 17TeratomaEtoposideTranslocation, GeneticRetrospective StudiesPineal GlandSertoli Cell TumorNeurofilament ProteinsCranial IrradiationCombined Modality TherapyLomustineCyclophosphamideSpinal Cord DiseasesRhabdomyosarcomaThiotepaSoft Tissue NeoplasmsIn Situ Hybridization, FluorescenceAntineoplastic Combined Chemotherapy ProtocolsDNA, NeoplasmTumor Cells, CulturedSpinal Cord CompressionGliomaFibrous Dysplasia, MonostoticGene RearrangementPolymerase Chain ReactionGene AmplificationMaxillary NeoplasmsReverse Transcriptase Polymerase Chain ReactionCell Line, TumorNeoplasm Recurrence, LocalTumor Necrosis Factor-alphaDisease ProgressionTranscription FactorsTumor BurdenInfant, NewbornSurvival AnalysisPrognosisChromosome DeletionSynaptophysinBiopsy