Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralSarcoma, EwingMedulloblastomaCerebellar NeoplasmsSupratentorial NeoplasmsNeuroectodermal Tumor, MelanoticBrain NeoplasmsRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1PinealomaEpendymomaSpinal Cord NeoplasmsChromosomes, Human, Pair 22Sarcoma, Small CellRhabdoid TumorBone NeoplasmsCentral Nervous System NeoplasmsThoracic NeoplasmsOrbital NeoplasmsIfosfamideTumor Markers, BiologicalNeuroblastomaOncogene Proteins, FusionParaparesisFatal OutcomeNeoplasms, Germ Cell and EmbryonalVincristineThoracic WallAstrocytomaImmunohistochemistryTomography, X-Ray ComputedChromosomes, Human, Pair 11Abdominal NeoplasmsChromosomes, Human, Pair 17TeratomaEtoposideTranslocation, GeneticPineal GlandCranial IrradiationCombined Modality TherapyLomustineNeurofilament ProteinsMagnetic Resonance ImagingCyclophosphamideRhabdomyosarcomaThiotepaSoft Tissue NeoplasmsIn Situ Hybridization, FluorescenceAntineoplastic Combined Chemotherapy ProtocolsDNA, NeoplasmTumor Cells, CulturedGliomaTreatment OutcomeGene RearrangementGene AmplificationPolymerase Chain ReactionMaxillary NeoplasmsCell Line, TumorNeoplasm Recurrence, LocalReverse Transcriptase Polymerase Chain ReactionTumor Necrosis Factor-alphaTumor BurdenChromosome DeletionDisease ProgressionSurvival AnalysisTranscription Factors