An unusual cause of benign paroxysmal positional vertigo.

Benign paroxysmal positional vertigo (BPPV) is a self-limiting condition characterized by vertigo and nystagmus induced by certain head positions. The most common causes of BPPV are post-traumatic following head injury and post-viral labyrinthitis. We present an interesting case of BPPV following an otherwise uneventful neurosurgical removal of a parietal osteoma using hammer and chisel. Caution should be exercised during such procedures as disabling vertigo can result for a considerable period of time.