Abstract
We report a rare case of olfactory groove schwannoma. A 28-year-old male was admitted complaining of worsening chronic headache. Neurological examination revealed anosmia on the left side. Neuroradiological examination including MRI demonstrated an intradural extraaxial tumor measuring 5cm in diameter in the left frontal base. Operatively, total resection was performed. The tumor had an attachment at the olfactory groove. Histological examination was compatible with schwannoma, Antoni B type. There were several postulations about its origin, mainly that the schwannoma originatd from either the olfactory nerve or a nerve intimated with it.
