title: Case of microarteriovenous malformation-induced trigeminal neuralgia treated with radiosurgery.
abstract: Radiosurgery to the right fifth cranial nerve was performed with the Gamma Knife on a 39- year-old patient who presented with classic symptoms of trigeminal neuralgia (TN), but was found on imaging studies to harbour a small intrinsic vascular malformation within the nerve. Based on size and drainage, the arteriovenous malformation (AVM) was Spetzler-Martin Grade III and no previous history of bleeding was reported. The patient had failed a trial of carbamazepine, and no surgical procedures had been performed. A decrease in symptoms was reported by the 6-month follow-up. A review of the literature on microAVM-induced TN is provided as well as a discussion of management.
authors.affiliation: The Johns Hopkins University, School of Medicine, Department of Neurosurgery, Baltimore, MD 21287, USA.
authors.forename: William S
authors.initials: WS
authors.lastname: Anderson
authors.forename: Paul P
authors.initials: PP
authors.lastname: Wang
authors.forename: Daniele
authors.initials: D
authors.lastname: Rigamonti
mesh_terms: D000328:Adult; D000927:Anticonvulsants / Q000627:therapeutic use; D001488:Basilar Artery / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D002220:Carbamazepine / Q000627:therapeutic use; D002530:Cerebellopontine Angle / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D002533:Cerebral Angiography; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000150:complications* / Q000503:physiopathology / Q000601:surgery*; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging / Q000592:standards; D008297:Male; D011237:Predictive Value of Tests; D011829:Radiation Dosage; D016634:Radiosurgery / Q000379:methods*; D016896:Treatment Outcome; D014276:Trigeminal Nerve / Q000098:blood supply / Q000473:pathology / Q000503:physiopathology*; D014277:Trigeminal Neuralgia / Q000209:etiology* / Q000503:physiopathology / Q000601:surgery*
chemical_list: D000927:Anticonvulsants; D002220:Carbamazepine