Facial myokymia and brain stem tumor.

An autoptic case of facial myokymia in glioma of the pons is described. The facial myokymia was the only symptom for many years. The authors emphasize the importance of the facial myokymia as a precocious sign of pons tumor and stress the meaning of the EMG in the differential diagnosis between facial myokymia in brain stem tumor and facial hyperkinesa in other diseases.