Abstract
We describe three patients complaining of hearing disturbance associated with le sion in the anterior inferior cerebellar artery.
Case 1: a 71-year-old male with hypertension complained of dizzines with right facial nerve paralysis. Although pure tone audiometory was slightly worse on the right than on the left, auditory brainstem response showed no response. MRI revealed infarction in the right AICA territory and MR angiography revealed a defect of in the right AICA.
Case 2: an-80-year-old female with a 40-year history of diabetes mellitus complained of vertigo with left profound hearing loss. Neurological examination showed left upper and lower muscular weakness. MRI revealed multiple spotty high density area, however MRI did not visualize the inner ear well enough to identify AICA territory infarction.
Case 3: a 58-year-old female complained of left hearing loss with vertigo. Otoneurological examination showed profound sensorineural hearing loss and positional horizontal nystagmus beating toward the ceiling. MRA revealed Dolico artery. We suspected that she had circulatory insufficiency in the AICA territory.
