Spinal NeoplasmsSpinal CordSpinal Cord NeoplasmsDura MaterLaminectomySpinal Cord InjuriesSpinal Cord DiseasesSpinal Cord CompressionSpinal CanalArachnoid CystsCauda EquinaThoracic VertebraeNeoplasms, Cystic, Mucinous, and SerousIophendylateMyelographyNeurilemmomaSpinal DiseasesTuberculomaHemangioma, CapillaryPancreatic NeoplasmsPolyradiculopathyPeripheral Nervous System NeoplasmsSpinal Nerve RootsMagnetic Resonance ImagingNeoplasmsNeurosurgical ProceduresLumbar VertebraeIntervertebral Disc DisplacementCervical VertebraeMeningeal NeoplasmsCranial Fossa, PosteriorMeningiomaInjections, SpinalLipomaParaparesisNeoplasms, Muscle TissueSpinal NervesLumbosacral RegionSacrumOccipital BoneArachnoidMeningoceleAnesthesia, SpinalDecompression, SurgicalSkin NeoplasmsInfratentorial NeoplasmsNeoplasms, Multiple PrimaryBrown-Sequard SyndromeTomography, X-Ray ComputedBronchogenic CystEchinococcosisForamen MagnumKidney NeoplasmsSubarachnoid SpaceNeoplasms, Second PrimarySkull Base NeoplasmsRadiculopathyChordomaSpinal StenosisThyroid NeoplasmsAdenocarcinoma, MucinousSyringomyeliaSpinal FusionSpineMyeloproliferative DisordersNeurologic ExaminationIntracranial HypotensionTreatment OutcomeEpidural AbscessCentral Nervous System HelminthiasisEpidural SpaceEpendymomaImmunohistochemistryCraniotomyLung NeoplasmsDermoid CystDNA, NeoplasmParotid NeoplasmsCystadenomaNeoplasms, Connective and Soft TissueNeoplasms, Plasma CellSubdural EffusionAppendiceal NeoplasmsLiver NeoplasmsCystadenoma, MucinousOvarian NeoplasmsSpinal InjuriesEndocrine Gland NeoplasmsMuscular Atrophy, SpinalGastrointestinal NeoplasmsCarcinoma, Pancreatic DuctalNeoplasms, ExperimentalCystsTuberculosis, MeningealNeoplasms, Vascular TissueRetrospective StudiesEye NeoplasmsNose NeoplasmsDysarthriaSalivary Gland Neoplasms