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Departments of Neurology (Drs. Logigian, Shefner, and Raynor) and Pathology (Dr. Frosch), Brigham and Women's Hospital, Harvard Medical School; and the Departments of Neurology (Drs. Kloman and Hollander) and Pathology (Dr. Adelman), the New England Medical Center, Tufts University School of Medicine, Boston, MA.
We report two patients with mononeuritis multiplex, both of whom had focal inflammation of the perineurium and endoneurium on sural nerve biopsy without necrosis of blood vessel walls, histologic evidence of lymphoid malignancy, or mycobacterial infection. The predominant early sensory symptoms were asymmetric pain and paresthesias; subsequently, muscle weakness developed. Electrophysiologic studies showed an asymmetric sensorimotor axon loss radiculoneuropathy with denervation of limb and paraspinal muscles. Spinal fluid protein was elevated in one patient. There was no cause or underlying systemic disease. Marked improvement occurred with steroid therapy.
Address correspondence and reprint requests to Dr. D. Hollander, Department of Neurology, New England Medical Center, 750 Washington Street, Boston, MA 02111
Received April 1, 1992. Accepted for publication in final form September 29,1992.
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