Neuroectodermal Tumors, PrimitiveRhabdoid TumorNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralMedulloblastomaSarcoma, EwingCerebellar NeoplasmsSupratentorial NeoplasmsBrain NeoplasmsNeuroectodermal Tumor, MelanoticRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1Chromosomes, Human, Pair 22PinealomaTeratomaCentral Nervous System NeoplasmsSpinal Cord NeoplasmsEpendymomaSarcoma, Small CellBone NeoplasmsFatal OutcomeThoracic NeoplasmsTumor Markers, BiologicalImmunohistochemistryOrbital NeoplasmsIfosfamideNeuroblastomaOncogene Proteins, FusionParaparesisTomography, X-Ray ComputedNeoplasms, Germ Cell and EmbryonalVincristineThoracic WallAstrocytomaSoft Tissue NeoplasmsChromosomes, Human, Pair 11Combined Modality TherapyAbdominal NeoplasmsMagnetic Resonance ImagingChromosomes, Human, Pair 17Transcription FactorsIn Situ Hybridization, FluorescenceEtoposideTranslocation, GeneticChromosomal Proteins, Non-HistonePineal GlandCranial IrradiationRhabdomyosarcomaDNA-Binding ProteinsLomustineNeurofilament ProteinsCyclophosphamideTumor Cells, CulturedThiotepaCell Line, TumorWilms TumorInfant, NewbornAntineoplastic Combined Chemotherapy ProtocolsDNA, NeoplasmReverse Transcriptase Polymerase Chain ReactionTreatment OutcomeChromosome DeletionGliomaGene Expression Regulation, NeoplasticGene RearrangementPrognosisPolymerase Chain ReactionKidney NeoplasmsGene AmplificationMaxillary NeoplasmsNeoplasm Recurrence, LocalSurvival AnalysisTumor Necrosis Factor-alphaTumor BurdenGenes, Tumor SuppressorDisease Progression