Sudden unilateral hearing loss and vertigo due to posterior inferior cerebellar artery territorial hypo perfusion by vertebral artery dissection

Abstract

Sudden hearing loss and vertigo are the typical presentation of anterior inferior cerebellar artery infarction, but may occur in posterior inferior cerebellar artery (PICA) infarction. However, it is known that it is very rare that hearing loss and vertigo occur due to perfusion deficits without the occurrence of infarction. Here I describe a patient who presented with sudden hearing loss in left ear and vertigo due to PICA territorial hypo perfusion without infarction by vertebral artery (VA) dissection.