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KMID : 1037420060010010011
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Journal of Korean Skull Base Society
2006 Volume.1 No. 1 p.11 ~ p.16
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Clinical Analysis of Cerebellopontine Angle Epidermoid Tumors
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Lee Yong-Jae
Lee Sang-Hoon
Kim Jae-Woo
Park Kang-Wha
Ghang Chang-Gu
Chung Ui-Wha
Lee Young-Woo
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Abstract
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Epidermoid tumors are rare. We reviewed 12 intracranial epidermoid surgically treated tumors from the cerebellopontine angle (CPA) between 1992 and 2005. Total resection was achieved in 11 cases (91%); in one case, some parts of the cyst capsule were left because the cyst adhered to the brainstem, vascular structure and cranial nerves from the cerebellopontine angle. The most common symptom was trigeminal neuralgia (9 cases). On their latest clinical and radiological follow-up examinations (mean27.1months), most cases had good results without specific postoperative complications (91%). However, in one case, tumor regrowth was observed one year later and re-operation was done with a favorable result. Although epidermoid tumors in CPA are very difficult to resect totally for its surrounding neurovascular structure, a total surgical removal was possible to reduce tumor regrowth and improve outcome.
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KEYWORD
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Epidermoid cyst, Cerebellopontine angle, Trigeminal neuralgia
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