Facial myokymia in multiple system atrophy.

Facial myokymia: a clue to the diagnosis of multiple sclerosis.

Introduction Facial myokymia is an unusual form of involuntary movement of the facial musculature which is characterized by spontaneous undulating waves of contracting muscle fibres spreading across the face. In a recent review, Gutman, Thompson & Martin (1969) were able to find forty cases reported in the world literature and added two of their own. Of these cases, in twenty-three the diagnosi...

Facial myokymia in the Guillain-Barré syndrome.

Facial myokymia, a unique involuntary movement of facial muscles, is described in a patient with Guillain-Barré syndrome. Although this involuntary movement is most often described with intramedullary lesions of the brain stem, it may also appear with lesions external to the neuraxis. We review the literature and propose a more widespread distribution of potential lesions along the facial nerve...

Multiple Sclerosis Presenting with Facial Twitching (Myokymia and Hemifacial Spasms)

Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system. The etiology is insufficiently understood. Autoimmune, genetic, viral, and environmental factors have been hypothesized. MS is twice as common in women as in men between the ages of 20 and 50 years. There is no known cure for MS. Current medical treatment helps to prevent new attacks and impro...

Post-irradiation myokymia and neuromyotonia in unilateral tongue and mentalis muscles: report of a case.

We report a 52-year-old man with slowly progressive dysarthria and dysphagia for about 11 years after radiation therapy of nasopharyngeal carcinoma. Neurological examination revealed atrophy and myokymia on the left side of the tongue and in the left mentalis muscles. Electrical discharges of myokymia and neuromyotonia were also observed in the aforementioned muscles, suggesting increased motor...

Experimental facial myokymia in cat