Neuroectodermal Tumors, Primitive, PeripheralNeuroectodermal Tumors, PrimitiveSarcoma, EwingNeuroectodermal TumorsSarcoma, Small CellProto-Oncogene Protein c-fli-1RNA-Binding Protein EWSMedulloblastomaBone NeoplasmsNeuroectodermal Tumor, MelanoticChromosomes, Human, Pair 22Cerebellar NeoplasmsSupratentorial NeoplasmsBrain NeoplasmsPinealomaEpendymomaSpinal Cord NeoplasmsRhabdoid TumorCentral Nervous System NeoplasmsThoracic NeoplasmsNeuroblastomaOrbital NeoplasmsNeoplasms, Germ Cell and EmbryonalIfosfamideOncogene Proteins, FusionFatal OutcomeVincristineParaparesisTumor Markers, BiologicalAstrocytomaThoracic WallImmunohistochemistryChromosomes, Human, Pair 11Tomography, X-Ray ComputedTranslocation, GeneticAbdominal NeoplasmsTeratomaChromosomes, Human, Pair 17EtoposidePineal GlandCranial IrradiationMaxillary NeoplasmsNeurofilament Proteins