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Rapid tumor growth in patient with vestibular schwannoma: case report and review of natural history of vestibular schwannoma
J Korean Skull Base Soc 2017;12(2):37-41
Published online September 30, 2017
© 2017 Korean Skull Base Society.

Il Jang, Gi Taek Yee, Myeong Jin Kim, Eun Young Kim, Chan Jong Yoo

Department of Neurosurgery, Gachon University Gil Medical Center, Incheon, Korea
Correspondence to: Gi Taek Yee
주소 : Department of Neurosurgery, GachonUniversity Gil Medical Center, 21, Namdong-daero 774 beon-gil, Namdong-gu, Incheon 21565, Korea
Tel : +82-32-460-3304
Fax : +82-32-460-3899
E-mail : gtyee@gilhospital.com
Received August 25, 2017; Accepted August 25, 2017.
Abstract
Vestibular schwannoma (VS) is a benign tumor which tends to grow slowly. In general, the growth rate of VS is about 1mm/year. We treated an unusual case of rapid growing VS associated with multiple cystic changes. Also, we review the natural history and factors influencing tumor growth of VS. A 75-year old female patient presented with gait disturbance and hearing loss. Brain magnetic resonance imaging (MRI) showed a mass of 4.0×4.0×3.5cm size with multiple cystic changes and heterogeneous enhancement in right cerebellopontine angle (CPA). Twelve six months ago, the patient had a brain MRI which revealed CPA mass less than 1.0cm in diameter. Small sized VSs should be followed up with MRI at least every two years and the VSs consisted with cystic component need to be more closed observation than the solid type.
Keywords : Acoustic neuroma, Natural history, Rapid growth


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