Abstract
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 8th cranial nerve. Rare cases are shown to arise from the olfactory or optic nerve, being
devoid of myelin sheath. Up to date and according to our best of knowledge, 66 cases
have been reported till now. Here we present a review of the literature and a case
report of a 56-year-old male with an accidently discovered anterior cranial fossa
schwannoma, following a road traffic accident. Tumor was completely excised, using
a right frontal approach. Histopathology revealed Antoni-A cellular pattern. Although
rare, but olfactory nerve schwannomas should be included in the differential diagnosis
in anterior cranial fossa space occupying lesions, and the approach should be designed
taking into consideration, this rare entity.
Keywords
olfactory nerve Schwannoma - anterior cranial fossa schwannoma - olfactory groove
schwannoma - olfactory - schwannoma
