A Case of Facial Nerve Schwannoma Extending into the Middle Cranial Fossa / 대한이비인후과학회지

Schwannomas of the facial nerve are uncommon tumors, accounting for about 0.8% of all intrapetrous mass lesion.1-3) Very rarely do these lesions acts as expansile tumors of the petrous bone that extend to involve the intracranial cavity.1-10) Recently we experienced 1 case of facial nerve schwannoma unusually extending into middle cranial fossa which was removed by transcochlear and middle fossa approach. So we report the case with review of literature.