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CSF cytology and HIV serology were both negative. EMG, however, confirmed the clinical findings of polyradiculopathy. T1W and T2W MRI of the lumbar spine demonstrated diffuse thickening of the nerve roots of the cauda equina, which enhanced following intravenous gadolinium administration (Figs. 1 and 2). No parenchymal involvement was seen.
Treatment depends on the cause but includes symptomatic relief with NSAIDs, other analgesics, and corticosteroids. Nerve root disorders (radiculopathies) are precipitated by acute or chronic pressure on a root in or adjacent to the spinal column. The most common cause is. A herniated intervertebral disk. Bone changes due to RA or osteoarthritis, especially in the cervical and lumbar areas, may also compress isolated nerve roots. Less commonly, carcinomatous meningitis causes patchy multiple root dysfunction.