Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralSarcoma, EwingMedulloblastomaCerebellar NeoplasmsSupratentorial NeoplasmsBrain NeoplasmsNeuroectodermal Tumor, MelanoticRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1PinealomaChromosomes, Human, Pair 22EpendymomaSpinal Cord NeoplasmsSarcoma, Small CellRhabdoid TumorCentral Nervous System NeoplasmsBone NeoplasmsNeuroendocrine TumorsThoracic NeoplasmsOrbital NeoplasmsOncogene Proteins, FusionIfosfamideVincristineNeuroblastomaParaparesisFatal OutcomeThoracic WallImmunohistochemistryNeoplasms, Germ Cell and EmbryonalAstrocytomaTomography, X-Ray ComputedTumor Markers, BiologicalChromosomes, Human, Pair 11Abdominal NeoplasmsChromosomes, Human, Pair 17Translocation, GeneticEtoposideTeratomaPineal GlandCranial IrradiationCombined Modality TherapyNeurofilament ProteinsLomustineCyclophosphamideMagnetic Resonance ImagingThiotepaIn Situ Hybridization, FluorescenceRhabdomyosarcomaTumor Cells, CulturedAntineoplastic Combined Chemotherapy ProtocolsSoft Tissue NeoplasmsPancreatic NeoplasmsTreatment OutcomeGene RearrangementDNA, NeoplasmPrognosisMaxillary NeoplasmsGliomaGene AmplificationPolymerase Chain Reaction