<unk>  confined to epidural adipose tissue in spine
Thoracic and lumbar spine most common; C-spine least common
Usually spans up to 3-5 vertebral spaces
Typically hematogenous spread from other source of infection
S. aureus (most common, 2/3 of cases)
S. epidermidis (associated with device, instrumentation)
E. coli (urine spread)
P. aeruginosa (IVDA)
Rare: anaerobes, mycobacteria, fungi
98% of patients have at least one of the following risk-factors:
Injection drug use
Immunocompromised
Alcohol use disorder
Cancer
Recent spine procedure
Recent spine fracture
Distant site of infection
Indwelling catheter
Chronic renal failure
Diabetes
Injection drug use
Immunocompromised
Alcohol use disorder
Cancer
Recent spine procedure
Recent spine fracture
Distant site of infection
Indwelling catheter
Chronic renal failure
Diabetes
Syndromes
Spinal cord injury
Spinal cord compression (non-traumatic)
Cauda equina syndrome
Conus medullaris syndrome
Causes
Spinal cord injury<unk> (spinal)
Epidural hematoma (spinal)
Syringomyelia
Spinal cord injury
Spinal cord compression (non-traumatic)
Cauda equina syndrome
Conus medullaris syndrome
Spinal cord injury<unk> (spinal)
Epidural hematoma (spinal)
Syringomyelia
Epidural abscess 
Epidural Abscess 
Subdural empyema
Discitis
Vertebral osteomyelitis
Spine related
Epidural hemorrhage
Acute ligamentous injury