Intrinsic Arteriovenous Malformation Embedded in the Trigeminal Nerve of a Patient With Trigeminal Neuralgia —Case Report—

Shinya SUMIOKA; Akinori KONDO; Hideki TANABE; Soichiro YASUDA

doi:10.2176/nmc.51.639

Case Reports

Intrinsic Arteriovenous Malformation Embedded in the Trigeminal Nerve of a Patient With Trigeminal Neuralgia

—Case Report—

Shinya SUMIOKA, Akinori KONDO, Hideki TANABE, Soichiro YASUDA

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Keywords: arteriovenous malformation, microvascular decompression, radiosurgery, trigeminal neuralgia

JOURNAL OPEN ACCESS

2011 Volume 51 Issue 9 Pages 639-641

DOI https://doi.org/10.2176/nmc.51.639

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Abstract

A 66-year-old man presented with typical right trigeminal neuralgia. Neuroimaging showed a small arteriovenous malformation (AVM) in the right cerebellopontine angle. Suboccipital craniotomy verified that the AVM was almost completely embedded in the root entry zone of the trigeminal nerve and the nerve axis was tilted infero-posteriorly. The patient obtained complete pain relief without sequelae after surgery by transposition of the superior cerebellar artery and correction of the tilted nerve axis. The nidus of the unresected AVM was obliterated by gamma knife radiosurgery.

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