Neuroectodermal Tumors, PrimitiveNeuroectodermal Tumors, Primitive, PeripheralNeuroectodermal TumorsDesmoplastic Small Round Cell TumorSarcoma, EwingAbdominal NeoplasmsSarcoma, Small CellRNA-Binding Protein EWSMedulloblastomaProto-Oncogene Protein c-fli-1Cerebellar NeoplasmsSupratentorial NeoplasmsChromosomes, Human, Pair 22Neuroectodermal Tumor, MelanoticBrain NeoplasmsOncogene Proteins, FusionRhabdomyosarcoma, EmbryonalRhabdomyosarcomaPinealomaBone NeoplasmsWT1 ProteinsRhabdomyosarcoma, AlveolarTranslocation, GeneticCarcinoma, Small CellEpendymomaChimerin ProteinsPeritoneal NeoplasmsSpinal Cord NeoplasmsSarcoma, Clear CellChromosomes, Human, Pair 11ImmunohistochemistryRhabdoid TumorTumor Markers, BiologicalNeoplasms, Germ Cell and EmbryonalNeuroblastomaCentral Nervous System NeoplasmsThoracic NeoplasmsFatal OutcomeLiposarcoma, MyxoidHeterogeneous-Nuclear RibonucleoproteinsIfosfamideSoft Tissue NeoplasmsOrbital NeoplasmsReverse Transcriptase Polymerase Chain ReactionGranulosa Cell TumorParaparesisVincristineThoracic WallAstrocytomaTeratomaGiant Cell Tumor of BoneTomography, X-Ray ComputedVenereal Tumors, VeterinaryEtoposideChromosomes, Human, Pair 17Giant Cell TumorsPineal GlandHistiocytoma, Benign FibrousCombined Modality TherapyCranial IrradiationMastocytomaHistiocytic SarcomaDNA-Binding ProteinsMagnetic Resonance ImagingLomustineNeurofilament ProteinsSarcomaGranular Cell TumorCyclophosphamideTesticular NeoplasmsIn Situ Hybridization, FluorescenceAntineoplastic Combined Chemotherapy ProtocolsTranscription FactorsDNA, NeoplasmThiotepaTreatment OutcomeTumor Cells, CulturedSertoli Cell TumorMolecular Sequence DataMaxillary NeoplasmsDog DiseasesBase SequenceLeydig Cell TumorGliomaPolymerase Chain ReactionGene RearrangementNeoplasm Recurrence, LocalGene AmplificationCell Line, TumorGerminomaPrognosisBiopsy