Nerve Sheath NeoplasmsPeripheral Nervous System NeoplasmsNeurofibromaNeurofibromatosis 1NeurilemmomaNeurofibroma, PlexiformGenes, Neurofibromatosis 1NeurofibromatosesNeurofibromin 1Sarcoma, SynovialS100 ProteinsSoft Tissue NeoplasmsSchwann CellsNeurothekeomaEpithelioid CellsThoracic NeoplasmsSarcomaImmunohistochemistryCranial Nerve NeoplasmsOptic NerveSciatic NerveTumor Markers, BiologicalHemangiopericytomaHMGA ProteinsNeurofibromatosis 2ScalpNervous System NeoplasmsOptic Nerve NeoplasmsMagnetic Resonance ImagingCell Line, TumorSpinal Nerve RootsSpinal CanalHorse DiseasesDog DiseasesSpinal NeoplasmsThighMyelin SheathPeripheral NervesCat DiseasesFatal OutcomeTomography, X-Ray ComputedCell ProliferationIntracranial HypertensionReverse Transcriptase Polymerase Chain ReactionPseudotumor CerebriLeiomyosarcomaGene Expression Regulation, NeoplasticCell Transformation, NeoplasticTumor Suppressor Protein p53Nerve FibersBrain NeoplasmsImmunoenzyme TechniquesGene Expression ProfilingComparative Genomic HybridizationSignal TransductionIn Situ Hybridization, FluorescenceXenograft Model Antitumor AssaysMeningiomaTissue Array AnalysisNeoplasm Recurrence, LocalFibromaRetrospective StudiesHorsesNeoplasm ProteinsIntracranial PressureTumor Necrosis Factor-alphaTreatment OutcomeTumor BurdenNerve RegenerationMutationAntineoplastic AgentsNeoplasms, Nerve TissueTranslocation, GeneticPrognosisOncogene Proteins, FusionOligonucleotide Array Sequence AnalysisBiopsy