Epidural AbscessAbscessEpidural SpaceDiscitisSpinal DiseasesOsteomyelitisDecompression, SurgicalSpinal Cord DiseasesStaphylococcal InfectionsBrain AbscessMagnetic Resonance ImagingLiver AbscessSpinal CordPsoas AbscessStaphylococcus aureusAnti-Bacterial AgentsStreptococcus milleri GroupLaminectomyAbdominal AbscessLung AbscessAnesthesia, EpiduralSpinal Cord InjuriesCervical Vertebrae