Vestibular migraine: A case report and review of the literature.

Vestibular migraine (VM) is one of the most common causes of episodic vertigo, but it can be missed in patients complaining of dizziness. This report describes the case of a 46-year-old woman with episodic vertigo attacks and a history of migrainous headaches. Some of the vertigo attacks were accompanied by a migraine. Gaze-induced nystagmus was present during attacks, but regressed with medication. Ear, nose, and throat evaluation; laboratory; imaging findings; and hearing test results were normal. Treatment with 500 mg valproic acid led to a rapid response in this case. VM should be considered in neurological examinations on the basis of clinical symptomatology.