Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralSarcoma, EwingMedulloblastomaCerebellar NeoplasmsSupratentorial NeoplasmsNeuroectodermal Tumor, MelanoticBrain NeoplasmsRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1PinealomaSpinal Cord NeoplasmsEpendymomaChromosomes, Human, Pair 22Sarcoma, Small CellBone NeoplasmsRhabdoid TumorCentral Nervous System NeoplasmsThoracic NeoplasmsTumor Markers, BiologicalOrbital NeoplasmsOncogene Proteins, FusionIfosfamideNeuroblastomaVincristineFatal OutcomeImmunohistochemistryParaparesisNeoplasms, Germ Cell and EmbryonalAstrocytomaTomography, X-Ray ComputedThoracic WallChromosomes, Human, Pair 11Abdominal NeoplasmsTeratomaChromosomes, Human, Pair 17EtoposideTranslocation, GeneticCombined Modality TherapyPineal GlandCranial IrradiationMagnetic Resonance ImagingCyclophosphamideLomustineNeurofilament ProteinsRhabdomyosarcomaSoft Tissue NeoplasmsIn Situ Hybridization, FluorescenceThiotepaTumor Cells, CulturedAntineoplastic Combined Chemotherapy ProtocolsDNA, NeoplasmTreatment OutcomeGliomaNeuroendocrine TumorsMaxillary NeoplasmsCell Line, TumorGene RearrangementPolymerase Chain ReactionGene AmplificationNeoplasm Recurrence, LocalPrognosisReverse Transcriptase Polymerase Chain ReactionSurvival AnalysisTumor BurdenDisease ProgressionBiopsyTumor Necrosis Factor-alphaChromosome DeletionTranscription FactorsGene Expression Regulation, NeoplasticChromosome Aberrations