Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralRhabdomyosarcomaSarcoma, EwingMedulloblastomaCerebellar NeoplasmsSupratentorial NeoplasmsRhabdomyosarcoma, EmbryonalNeuroectodermal Tumor, MelanoticBrain NeoplasmsRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1Rhabdomyosarcoma, AlveolarPinealomaChromosomes, Human, Pair 22EpendymomaSpinal Cord NeoplasmsSarcoma, Small CellBone NeoplasmsRhabdoid TumorCentral Nervous System NeoplasmsThoracic NeoplasmsOrbital NeoplasmsOncogene Proteins, FusionVincristineIfosfamideNeuroblastomaFatal OutcomeParaparesisNeoplasms, Germ Cell and EmbryonalThoracic WallImmunohistochemistryAstrocytomaTomography, X-Ray ComputedTranslocation, GeneticAbdominal NeoplasmsTumor Markers, BiologicalChromosomes, Human, Pair 11Combined Modality TherapyEtoposideTeratomaSoft Tissue NeoplasmsChromosomes, Human, Pair 17Pineal GlandCyclophosphamideCranial IrradiationNeurofilament ProteinsTumor Cells, CulturedLomustineMagnetic Resonance ImagingIn Situ Hybridization, FluorescenceAntineoplastic Combined Chemotherapy ProtocolsThiotepaTreatment OutcomeDNA, NeoplasmMaxillary NeoplasmsGene RearrangementGene AmplificationPrognosisGliomaPolymerase Chain ReactionNeoplasm Recurrence, LocalSurvival AnalysisTranscription FactorsInfant, NewbornReverse Transcriptase Polymerase Chain ReactionGene Expression Regulation, NeoplasticDisease-Free Survival