Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralNervous System NeoplasmsMedulloblastomaSarcoma, EwingCentral Nervous System NeoplasmsBrain NeoplasmsCerebellar NeoplasmsSupratentorial NeoplasmsNeuroectodermal Tumor, MelanoticEpendymomaSpinal Cord NeoplasmsRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1AstrocytomaPinealomaMeningiomaChromosomes, Human, Pair 22Rhabdoid TumorSarcoma, Small CellGliomaBone NeoplasmsNeuroblastomaNeurofibromatosis 2Thoracic NeoplasmsTumor Markers, BiologicalImmunohistochemistryOrbital NeoplasmsIfosfamideNeurilemmomaFatal OutcomeOncogene Proteins, FusionNeoplasms, Germ Cell and EmbryonalMeningeal NeoplasmsParaparesisVincristineThoracic WallMagnetic Resonance ImagingTomography, X-Ray ComputedChromosomes, Human, Pair 11Cell Line, TumorTeratomaChromosomes, Human, Pair 17Abdominal NeoplasmsEtoposideTranslocation, GeneticNeurofibromin 2Infant, NewbornCombined Modality TherapyGlioblastomaPineal GlandCranial IrradiationPaternal ExposureNeoplasmsNeurofilament ProteinsLomustineBrain Stem NeoplasmsNeurofibromatosis 1CyclophosphamideTumor Necrosis Factor-alphaTumor BurdenRhabdomyosarcomaDNA, NeoplasmSoft Tissue NeoplasmsThiotepaCentral Nervous SystemNeoplasms, Nerve TissueIn Situ Hybridization, FluorescenceAntineoplastic Combined Chemotherapy ProtocolsPolymerase Chain ReactionTreatment OutcomeRetrospective StudiesTumor Cells, CulturedReverse Transcriptase Polymerase Chain ReactionGene RearrangementNeoplasm Recurrence, LocalGene AmplificationNervous SystemDisease ProgressionMaxillary NeoplasmsWilms TumorTranscription FactorsTime FactorsFollow-Up StudiesSurvival AnalysisMolecular Sequence DataPrognosisChromosome DeletionBiopsyGene Expression Regulation, NeoplasticNeoplasms, ExperimentalGenes, Tumor SuppressorChromosome AberrationsSurvival RateDisease-Free Survival