Neuroectodermal Tumors, PrimitiveSupratentorial NeoplasmsNeuroectodermal TumorsMedulloblastomaNeuroectodermal Tumors, Primitive, PeripheralBrain NeoplasmsSarcoma, EwingCerebellar NeoplasmsNeuroectodermal Tumor, MelanoticRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1ApudomaEpendymomaPinealomaChromosomes, Human, Pair 22Spinal Cord NeoplasmsSarcoma, Small CellRhabdoid TumorTumor Markers, BiologicalBone NeoplasmsCentral Nervous System NeoplasmsThoracic NeoplasmsNeuroblastomaAstrocytomaOrbital NeoplasmsNeoplasms, Germ Cell and EmbryonalIfosfamideTomography, X-Ray ComputedOncogene Proteins, FusionVincristineFatal OutcomeParaparesisThoracic WallPrognosisNeoplasmsImmunohistochemistryChromosomes, Human, Pair 11