| Cerebello-Pontine Angle Lipoma causing Hemifacial Spasm |
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Kyoung Duck Park, Young Im Kim, Young Hwan Ahn |
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Department of Neurosurgery, Ajou University School of Medicine, Suwon, Korea |
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| Abstract |
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Hemifacial spasm (HFS) is mostly caused by vascular compression of the facial nerve at root entry zone. Lipoma in the cerebellopontine angle causing hemifacial spasm is extremely rare, and only a few in the literature. A 34-year-old man admitted with a 2- year history of progressive muscle twitching on the right side of his face. The patient was treated with partial removal of lipoma via lateral suboccipital infra-floccular approach. His hemifacial spasm disappeared immediately after the surgery, but he complained of diplopia and tinnitus postoperatively for 4-5 months, which improved gradually. In patients with hemifacial spasm who present with lipoma compressing the facial nerve, offending vessel compressing the REZ of the facial nerve needs to be decompressed as well for good outcome. |
| Key Words:
Lipoma, Hemifacial spasm, Root entry zone. |
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