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 NeoplasmsTumor Markers, BiologicalIfosfamideMagnetic Resonance ImagingFatal OutcomeOncogene Proteins, FusionNeurilemmomaParaparesisNeoplasms, Germ Cell and EmbryonalVincristineMeningeal NeoplasmsThoracic WallTomography, X-Ray ComputedChromosomes, Human, Pair 11Abdominal NeoplasmsChromosomes, Human, Pair 17TeratomaEtoposideTranslocation, GeneticNeurofibromin 2Infant, NewbornCranial IrradiationPineal GlandPaternal ExposureGlioblastomaNeurofilament ProteinsCombined Modality TherapyBrain Stem NeoplasmsLomustineNeurofibromatosis 1NeoplasmsCyclophosphamideCentral Nervous SystemCell Line, TumorThiotepaRhabdomyosarcomaNeoplasms, Nerve TissueSoft Tissue NeoplasmsIn Situ Hybridization, FluorescencePolymerase Chain ReactionAntineoplastic Combined Chemotherapy ProtocolsDNA, NeoplasmTumor Cells, CulturedTreatment OutcomeRetrospective StudiesBrainNervous SystemGene RearrangementGene AmplificationMaxillary NeoplasmsReverse Transcriptase Polymerase Chain ReactionTime FactorsNeoplasm Recurrence, LocalFollow-Up StudiesTumor Necrosis Factor-alphaTranscription FactorsDisease ProgressionMolecular Sequence DataTumor BurdenSurvival AnalysisBiopsyPrognosisChromosome Deletion