Sarcoidosis of the peripheral nervous system

Abstract

The clinical and electrophysiologic data of four new patients with sarcoidosis involving the peripheral nerves are presented and the subject is reviewed. Two had a symmetric polyneuropathy and two had polyradiculopathy. These plus the few cases in the literature indicate that the findings on electromyography are most consistent with axonal neuropathy, in a multifocal pattern. Needle electrolyography was more useful than nerve conduction studies in identifying lesions.