[Recurrent alternating cranial nerve paralysis as an unusual type of polyneuropathy predilection].

A case is described where relapsing alternating cerebral nerve pareses were frequently observed in the course of twelve years. The neurogenic character of the pareses could be demonstrated by electromyography. The extremities examined also showed signs of subclinical changes of the peripheral nervous system. The results of examinations suggest that the patient has an idiopathic form of polyneuropathy, the clinical manifestation of which is restricted to the cerebral nervous system. The literature on relapsing cerebral nerve pareses is discussed briefly.