Bell's palsy - part of a polyneuropathy?

Abstract
To study whether nerves other than the facial nerve were affected, the clinical findings of 112 patients with Bell''s palsy were correlated with a quantitative EMG [electromyography] done on an asymptomatic leg muscle. The EMG results obtained from these leg muscles showed changes similar to those occurring in peripheral nerve lesions, and the changes correlated well with the degree of facial palsy. Patients with symptomatic facial dysfunction apparently have an acute subclinical polyneuropathy.

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