Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralSarcoma, EwingMedulloblastomaCerebellar NeoplasmsSupratentorial NeoplasmsNeuroectodermal Tumor, MelanoticBrain NeoplasmsRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1PinealomaEpendymomaGenes, Tumor SuppressorChromosomes, Human, Pair 22Spinal Cord NeoplasmsRhabdoid TumorSarcoma, Small CellBone NeoplasmsCentral Nervous System NeoplasmsTumor Suppressor ProteinsThoracic NeoplasmsTumor Suppressor Protein p53Tumor Markers, BiologicalOrbital NeoplasmsNeuroblastomaIfosfamideOncogene Proteins, FusionAstrocytomaParaparesisFatal OutcomeImmunohistochemistryNeoplasms, Germ Cell and EmbryonalVincristineThoracic WallChromosomes, Human, Pair 11Chromosomes, Human, Pair 17Tomography, X-Ray ComputedAbdominal NeoplasmsTranslocation, GeneticEtoposideTeratomaCell Line, TumorPineal GlandCranial IrradiationTumor Cells, CulturedCombined Modality TherapyDNA, NeoplasmLomustineNeurofilament ProteinsMagnetic Resonance ImagingGene Expression Regulation, NeoplasticCyclophosphamideRhabdomyosarcomaIn Situ Hybridization, FluorescenceThiotepaSoft Tissue NeoplasmsTranscription FactorsPolymerase Chain ReactionReverse Transcriptase Polymerase Chain ReactionGliomaMolecular Sequence DataAntineoplastic Combined Chemotherapy ProtocolsDNA-Binding ProteinsGene RearrangementTreatment OutcomeChromosome DeletionGene AmplificationDisease ProgressionMaxillary NeoplasmsTumor BurdenNeoplasm Recurrence, LocalChromosome AberrationsPrognosisTumor Necrosis Factor-alphaSurvival AnalysisTumor Suppressor Protein p14ARFCell Transformation, NeoplasticMutationBiopsy