A young adult woman developed spontaneous-onset bilateral forehead and ear twitching, causing her significant distress and poor sleep. Results of her neurological examination were normal. This video illustrates the involuntary semirhythmic movements of her left ear and forehead, with myokymia (twitching) of her left auricularis posterior, auricularis superior, and frontalis muscles demonstrated by ultrasonography, which helped her physicians confirm which muscles were involved prior to onabotulinum toxin type A injection as attempted treatment.
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