title: Intrinsic arteriovenous malformation embedded in the trigeminal nerve of a patient with trigeminal neuralgia.
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.
authors.affiliation: Department of Neurosurgery, Brain, Spine and Neurology Center, Shiroyama Hospital, Habikino, Osaka, Japan. s-sumioka@energy.ocn.ne.jp
authors.forename: Shinya
authors.initials: S
authors.lastname: Sumioka
authors.forename: Akinori
authors.initials: A
authors.lastname: Kondo
authors.forename: Hideki
authors.initials: H
authors.lastname: Tanabe
authors.forename: Soichiro
authors.initials: S
authors.lastname: Yasuda
mesh_terms: D000368:Aged; D001488:Basilar Artery / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D002550:Cerebral Veins / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000150:complications / Q000473:pathology* / Q000601:surgery*; D008297:Male; D011859:Radiography; D016896:Treatment Outcome; D014276:Trigeminal Nerve / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery*; D014277:Trigeminal Neuralgia / Q000209:etiology / Q000473:pathology* / Q000601:surgery*