The authors propose a method of CT epidurography for the diagnosis of a rarely revealed complication of neurological manifestations of lumbar osteochondrosis--reactive aseptic spinal epiduritis. The method determines with precision small intervertebral disk hernias, aseptic fibrosis and initial manifestations of non-hernial epiduritis. Nine patients were evaluated. Treatment included epidural administration of enzymes, thymalin oxygen: the result was favourable in all patients.