Operative approach to persistent trigeminal artery producing facial pain and diplopia. Case report.

A case is reported of persistent trigeminal artery producing intermittent facial pain, the last episode being associated with diplopia. The trigeminal and abducent nerves were attached to the trigeminal artery by a congenital membrane. Blood supply to the vertebrobasilar system was via the persistent vessel. A new operative approach along the petrous-temporal ridge is described.