J Korean Neurosurg Soc.  2006 Feb;39(2):156-158.

Olfactory Groove Schwannoma

Affiliations
  • 1Department of Neurosurgery, School of Medicine, Wonkwang University, Iksan, Korea. tykim@wonkwang.ac.kr

Abstract

We present a case of olfactory schwannoma in a 16-year-old boy with headache and diplopia. Brain computed tomography (CT) scan and magnetic resonance(MR) imaging showed a huge mass in the subfrontal area resembling an olfactory groove meningioma. We performed a bifrontal craniotomy and found out the mass was attached to cribriform plate but was not related to the olfactory tract or bulb. The histopathological diagnosis of schwannoma was confirmed by immunohistochemical staining for S-100, vimentin and others. We describe the clinical manifestations, radiological characteristics, histological aspects, and differential diagnosis of this tumor with literature review.

Keyword

Schwannoma; Olfactory groove; Immunohistochemistry; Olfactory tract or bulb

MeSH Terms

Adolescent
Brain
Craniotomy
Diagnosis
Diagnosis, Differential
Diplopia
Ethmoid Bone
Headache
Humans
Immunohistochemistry
Male
Meningioma
Neurilemmoma*
Olfactory Pathways
Vimentin
Vimentin
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