Acute spinal epidural abscess.

A case of acute spinal epidural abscess is reported demonstrating many of the important features in the natural history of the disorder. The pathological changes in the cord at the level of the lesion are described. A series of 12 patients is reviewed. The average interval between the initial consultation and the onset of complete paralysis is 5 days and it is essential that the diagnosis is made during this period. Two indicators of prognosis are discussed--the duration of complete paralysis and the extent of sensory disturbance.