Epidural AbscessAbscessEpidural SpaceDiscitisSpinal DiseasesSpinal Nerve RootsDecompression, SurgicalOsteomyelitisSpinal Cord DiseasesStaphylococcal InfectionsMagnetic Resonance ImagingBrain AbscessSpinal CordLiver AbscessLaminectomyPsoas AbscessStaphylococcus aureusAnti-Bacterial AgentsCervical VertebraeStreptococcus milleri GroupAbdominal AbscessAnesthesia, EpiduralSpinal Cord InjuriesLumbar VertebraeLung AbscessNerve Compression Syndromes