Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralMedulloblastomaSarcoma, EwingBrain NeoplasmsCerebellar NeoplasmsSupratentorial NeoplasmsNeuroectodermal Tumor, MelanoticRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1PinealomaEpendymomaSpinal Cord NeoplasmsChromosomes, Human, Pair 22Sarcoma, Small CellRhabdoid TumorBone NeoplasmsCentral Nervous System NeoplasmsThoracic NeoplasmsAstrocytomaOrbital NeoplasmsTumor Markers, BiologicalNeuroblastomaIfosfamideOncogene Proteins, FusionFatal OutcomeParaparesisNeoplasms, Germ Cell and EmbryonalVincristineThoracic WallImmunohistochemistryGliomaTomography, X-Ray ComputedMagnetic Resonance ImagingChromosomes, Human, Pair 11Abdominal NeoplasmsChromosomes, Human, Pair 17TeratomaCranial IrradiationEtoposideTranslocation, GeneticPineal GlandCombined Modality TherapyLomustineNeurofilament ProteinsCyclophosphamideThiotepaRhabdomyosarcomaTumor Cells, CulturedSoft Tissue NeoplasmsIn Situ Hybridization, FluorescenceAntineoplastic Combined Chemotherapy ProtocolsDNA, NeoplasmTreatment OutcomeCell Line, TumorPolymerase Chain ReactionGene RearrangementGene AmplificationNeoplasm Recurrence, LocalMaxillary NeoplasmsReverse Transcriptase Polymerase Chain ReactionDisease ProgressionSurvival AnalysisTumor BurdenPrognosisTumor Necrosis Factor-alphaTranscription FactorsChromosome DeletionInfant, NewbornGene Expression Regulation, NeoplasticBiopsyChromosome Aberrations