Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralMedulloblastomaSarcoma, EwingBrain NeoplasmsCerebellar NeoplasmsSupratentorial NeoplasmsNeuroectodermal Tumor, MelanoticRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1EpendymomaPinealomaMeningiomaSpinal Cord NeoplasmsChromosomes, Human, Pair 22AstrocytomaSarcoma, Small CellRhabdoid TumorCentral Nervous System NeoplasmsBone NeoplasmsMeningeal NeoplasmsGliomaThoracic NeoplasmsOrbital NeoplasmsIfosfamideTumor Markers, BiologicalNeuroblastomaTomography, X-Ray ComputedOncogene Proteins, FusionFatal OutcomeNeoplasms, Nerve TissueMagnetic Resonance ImagingParaparesisNeoplasms, Germ Cell and EmbryonalVincristineImmunohistochemistryThoracic WallChromosomes, Human, Pair 11Abdominal NeoplasmsCombined Modality TherapyChromosomes, Human, Pair 17TeratomaTranslocation, GeneticEtoposideCranial IrradiationPineal GlandLomustineNeurofilament ProteinsCraniopharyngiomaGlioblastomaCyclophosphamideRhabdomyosarcomaTumor Cells, CulturedCell Line, TumorThiotepaSoft Tissue NeoplasmsIn Situ Hybridization, FluorescenceAntineoplastic Combined Chemotherapy ProtocolsDNA, NeoplasmTreatment OutcomePrognosisGene RearrangementPolymerase Chain ReactionGene AmplificationInfant, NewbornSurvival RateMaxillary NeoplasmsGene Expression Regulation, NeoplasticNeoplasm Recurrence, LocalReverse Transcriptase Polymerase Chain ReactionAdenoma, ChromophobeNeurilemmomaRetrospective StudiesTumor Necrosis Factor-alphaTumor BurdenSurvival AnalysisDisease ProgressionChromosome DeletionTranscription FactorsChromosome AberrationsBiopsyNeuroma, Acoustic