Abstract
Two patients with rheumatoid arthritis and one with Sjçgren syndrome had a severe sensorimotor neuropathy preceding or up to 5 years after the onset of the disease. Electrophysiologic and sural nerve biopsy studies revealed an axonal neuropathy. Myelinated fibers were affected to a greater extent than unmyelinated axons. Peripheral nerve damage was related to occlusion of the vasa nervorum, since vasculitic involvement of epineurial vessels was observed in all patients. Despite the severity of the neuropathy, it may recover, because, compared with axons, Schwann cells are perhaps less vulnerable to ischemia.
- © 1982 by the American Academy of Neurology
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