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KMID : 1035520140020010043
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Brain Tumor Research and Treatment : BTRT
2014 Volume.2 No. 1 p.43 ~ p.47
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Oculomotor Nerve Schwannoma: A Case Report
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Cho Yong-Hwan
Sung Kyung-Su
Song Young-Jin
Kim Dae-Cheol
Choi Sung-Seob
Kim Ki-Uk
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Abstract
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Schwannomas account for about 8% of intracranial tumors and 90% are vestibular schwannomas. Oculomotor schwannoma without neurofibromatosis is extremely rare. A 41-year-old female presented with complaints of blurred vision, and the neurologic examination revealed afferent pupillary defect and decreased visual acuity of the left side. Brain magnetic resonance image showed an extra axial mass in the left superior orbital fissure. The patient underwent major surgery via the fronto-temporal approach. The tumor originated from the oculomotor nerve and was subtotally removed under microscopic surgery. The pathological findings confirmed the tumor as a schwannoma. After surgery, ptosis and medial gaze limitation of the left eye was detected, but the symptoms improved gradually.
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KEYWORD
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Schwannoma, Oculomotor nerve, Surgery
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