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Journal of Korean Neurosurgical Society 2006;39(2): 156-158.
Olfactory Groove Schwannoma.
Ji Hwan Park, Tae Young Kim, Jong Tae Park, Jong Moon Kim
Department of Neurosurgery, School of Medicine, Wonkwang University, Iksan, Korea. tykim@wonkwang.ac.kr
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.
Key Words: Schwannoma; Olfactory groove; Immunohistochemistry; Olfactory tract or bulb
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