Ruptured arteriovenous malformation in the auditory nerve: technical case report.
OBJECTIVE
Arteriovenous malformations in the cranial nerves are very rare, and only one case has been reported in the literature. To our knowledge, this is the first case report of an arteriovenous malformation in the auditory nerve.


METHODS
A 30-year-old woman presented with a subarachnoid hemorrhage resulting from rupture of an arteriovenous malformation in the auditory nerve.


METHODS
During the operation, the auditory nerve bundle was found to be severely damaged and a nidus was identified inside the bundle.


CONCLUSIONS
Although arteriovenous malformations are thought to arise in the 4th to 8th weeks of gestation, this case might indicate a more specific time of emergence based on embryogenesis of the cranial nerves.
Oya
Soichi
S
Department of Neurosurgery, Saitama Medical Center/School, Saitama, Japan. sooya-tky@umin.ac.jp
Matsui
Toru
T
Asai
Akio
A
D000328:Adult; D001165:Arteriovenous Malformations / Q000150:complications* / Q000601:surgery; D020785:Central Nervous System Vascular Malformations / Q000150:complications* / Q000601:surgery; D003056:Cochlear Nerve / Q000473:pathology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D016634:Radiosurgery / Q000379:methods; D013345:Subarachnoid Hemorrhage / Q000209:etiology* / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods