J Korean Neurosurg Soc.
1996 Nov;25(11):2336-2338.
Cerebellopontine Angle Lipoma Presenting with Trigeminal Neuralgia: A Case Report
- Affiliations
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- 1Department of Neurosurgery, College of Medicine, Seoul National University, Seoul, Korea.
- 2Department of Pathology, College of Medicine, Seoul National University, Seoul, Korea.
Abstract
- Intracranial lipomas are rare lesions that constitute 0.1% of cerebral tumors. Moreover, the cerebellopontine(CP) angle is one of the most unusual sites of such hamartomas with only 30 reported cases in the literature. We report a case of CP angle lipoma presenting with trigeminal neuralgia on a 39-year-old male. Magnetic resonance imaging revealed a high signal mass at right CP angle on T1-weighted images before contrast administration. This mass appears hypointense on T2-weighted images. We operated through right suboccipital craniectomy and excised the mass subtotally. Total removal may be obtained with significant cranial nerve deficits. Therefore, the treatment of CP angle lipomas should be conservative. Histopathologic studies demonstrated lipoma.
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