Facial myokymia

43 patients with facial myokymia were examined clinically and electromyographically over periods of up to 13 years. 18 patients were suffering from multiple sclerosis, 6 patients from brain stem tumour or tumours of the posterior cranial fossa, and 19 from other known or unknown neurological disorders. Duration, recurrences, EMG results of myokymia and its accompanying neurological symptoms are discribed.