Olfactory Nerve Schwannoma: A Case Report and Review of the Literature.

Schwannomas are benign tumors, which arise from the Schwann cells of the central or peripheral nerves. They form 8% of all intracranial tumors and most of the cases arise from vestibular division of the 8 cranial nerve. Rare cases are shown to arise from the olfactory or optic nerve, being devoid of myelin sheath.