Central Nervous System Viral DiseasesSpondylitisDiscitisEpidural AbscessCentral Nervous SystemSpinal DiseasesBone Diseases, InfectiousTuberculosis, SpinalSpinal CordOsteomyelitisCentral Nervous System DiseasesCentral Nervous System NeoplasmsNervous SystemSpinal Cord InjuriesBrainCentral Nervous System InfectionsVirus DiseasesPeripheral Nervous SystemNeuronsVasculitis, Central Nervous SystemCentral Nervous System AgentsInjections, SpinalCentral Nervous System Fungal InfectionsEnteric Nervous SystemSpinal Cord NeoplasmsNeurogliaNervous System DiseasesNervous System Physiological PhenomenaAutonomic Nervous SystemMyelin SheathSpinal Cord Diseases