Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralSarcoma, EwingMedulloblastomaCerebellar NeoplasmsSupratentorial NeoplasmsHemangiomaNeuroectodermal Tumor, MelanoticBrain NeoplasmsRNA-Binding Protein EWSProto-Oncogene Protein c-fli-1PinealomaEpendymomaSpinal Cord NeoplasmsChromosomes, Human, Pair 22Sarcoma, Small CellRhabdoid TumorBone NeoplasmsCentral Nervous System NeoplasmsThoracic NeoplasmsHemangioma, CavernousOrbital NeoplasmsIfosfamideOncogene Proteins, FusionNeuroblastomaParaparesisFatal OutcomeThoracic WallTomography, X-Ray ComputedVincristineNeoplasms, Germ Cell and EmbryonalAstrocytomaImmunohistochemistryHemangioma, CapillaryChromosomes, Human, Pair 11Abdominal NeoplasmsTumor Markers, BiologicalChromosomes, Human, Pair 17Translocation, GeneticEtoposideTeratomaPineal GlandMagnetic Resonance ImagingCranial IrradiationNeurofilament ProteinsLomustineCombined Modality TherapyCyclophosphamideThiotepaSoft Tissue NeoplasmsRhabdomyosarcomaIn Situ Hybridization, FluorescenceTumor Cells, CulturedFusobacterium nucleatumFacial NeoplasmsTreatment OutcomeGene RearrangementDNA, NeoplasmInfant, NewbornNeurocutaneous SyndromesMaxillary NeoplasmsGliomaGene AmplificationPolymerase Chain Reaction