Neuroectodermal Tumors, PrimitiveNeuroectodermal TumorsNeuroectodermal Tumors, Primitive, PeripheralApudomaNeuroectodermal Tumor, MelanoticBrain NeoplasmsSarcoma, EwingMedulloblastomaTumor Markers, BiologicalCerebellar NeoplasmsNeoplasmsSupratentorial NeoplasmsProto-Oncogene Protein c-fli-1RNA-Binding Protein EWSRetrospective StudiesPrognosisPinealomaChromosomes, Human, Pair 22EpendymomaBone NeoplasmsSpinal Cord NeoplasmsRhabdoid TumorNeuroblastomaSarcoma, Small CellCell Line, TumorMaxillary NeoplasmsTumor BurdenTomography, X-Ray ComputedTumor Necrosis Factor-alphaNeoplasms, Germ Cell and EmbryonalImmunohistochemistryThoracic NeoplasmsCentral Nervous System NeoplasmsAstrocytomaMagnetic Resonance ImagingChromosomes, Human, Pair 11Fatal OutcomeWilms TumorAntigens, NeoplasmOncogene Proteins, FusionNeoplasms, ExperimentalGenes, Tumor SuppressorGanglioneuromaNeural PlateLipomaOrbital NeoplasmsSkull NeoplasmsDNA, NeoplasmTreatment OutcomeVincristineSoft Tissue NeoplasmsIfosfamideTumor Suppressor Protein p53Peripheral Nervous System NeoplasmsTeratomaCarcinoid TumorGliomaNeoplasm ProteinsCombined Modality TherapyTranslocation, GeneticCell Transformation, NeoplasticTumor Suppressor ProteinsReverse Transcriptase Polymerase Chain ReactionThoracic WallPolymerase Chain ReactionAbdominal NeoplasmsParaparesisRNA, MessengerNeoplasm Recurrence, LocalNeuroendocrine TumorsBiopsyRhabdomyosarcomaCell DivisionNeoplasms, Nerve TissueImmunoenzyme TechniquesIn Situ Hybridization, FluorescenceDisease ProgressionAntibodies, MonoclonalTime FactorsOvarian NeoplasmsNeoplasm MetastasisEtoposideGene Expression Regulation, NeoplasticNeurilemmomaRetinoblastomaTumor MicroenvironmentChromosomes, Human, Pair 17AdenocarcinomaPineal GlandSkin NeoplasmsAntineoplastic Combined Chemotherapy ProtocolsBiopsy, NeedleNeovascularization, PathologicCyclophosphamideTumor Cells, CulturedMolecular Sequence DataCranial IrradiationSensitivity and SpecificityMammary Neoplasms, ExperimentalSurvival Analysis