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 22Sarcoma, Small CellRhabdoid TumorGliomaBone NeoplasmsNeuroblastomaNeurofibromatosis 2Thoracic NeoplasmsImmunohistochemistryOrbital NeoplasmsIfosfamideTumor Markers, BiologicalOncogene Proteins, FusionFatal OutcomeNeurilemmomaParaparesisNeoplasms, Germ Cell and EmbryonalVincristineMeningeal NeoplasmsThoracic WallMagnetic Resonance ImagingTomography, X-Ray ComputedChromosomes, Human, Pair 11Abdominal NeoplasmsChromosomes, Human, Pair 17TeratomaEtoposideTranslocation, GeneticNeurofibromin 2Infant, NewbornPineal GlandCranial IrradiationPaternal ExposureCombined Modality TherapyNeurofilament ProteinsGlioblastomaLomustineBrain Stem NeoplasmsNeurofibromatosis 1CyclophosphamideNeoplasmsCell Line, TumorThiotepaRhabdomyosarcomaCentral Nervous SystemNeoplasms, Nerve TissueSoft Tissue NeoplasmsIn Situ Hybridization, FluorescenceAntineoplastic Combined Chemotherapy ProtocolsPolymerase Chain ReactionDNA, NeoplasmTumor Cells, CulturedTreatment OutcomeGene RearrangementRetrospective StudiesNervous SystemGene AmplificationMaxillary NeoplasmsReverse Transcriptase Polymerase Chain ReactionNeoplasm Recurrence, LocalTumor Necrosis Factor-alphaTranscription FactorsFollow-Up StudiesTumor BurdenDisease ProgressionChromosome DeletionSurvival Analysis