title: Brainstem arteriovenous malformation with a pedicle aneurysm treated by endovascular surgery and proton-beam radiosurgery--case report.
abstract: A 39-year-old male presented with a small pontine hemorrhage and subarachnoid hemorrhage. Angiography showed a small left pontine arteriovenous malformation (AVM) associated with a small aneurysm on the pedicle feeding the AVM. The pedicle aneurysm was occluded by microcoils. The AVM was then treated by proton-beam radiosurgery. Follow-up angiography 2 years later revealed that the AVM had disappeared completely without neurological deficit. The combination of embolization and proton-beam radiosurgery was curative in this patient with a pontine AVM associated with an aneurysm on the feeding artery, showing that these techniques can be used to treat inoperable vascular lesions safely.
authors.affiliation: Department of Neurosurgery, University of Tsukuba, Ibaraki.
authors.forename: Y
authors.initials: Y
authors.lastname: Matsumaru
authors.forename: A
authors.initials: A
authors.lastname: Hyodo
authors.forename: K
authors.initials: K
authors.lastname: Tsuboi
authors.forename: Y
authors.initials: Y
authors.lastname: Yoshii
authors.forename: T
authors.initials: T
authors.lastname: Nose
authors.forename: I
authors.initials: I
authors.lastname: Anno
authors.forename: T
authors.initials: T
authors.lastname: Okumura
authors.forename: H
authors.initials: H
authors.lastname: Tsujii
mesh_terms: D000328:Adult; D002543:Cerebral Hemorrhage / Q000209:etiology; D003131:Combined Modality Therapy; D004621:Embolization, Therapeutic; D006801:Humans; D002532:Intracranial Aneurysm / Q000209:etiology / Q000601:surgery*; D002538:Intracranial Arteriovenous Malformations / Q000150:complications / Q000601:surgery* / Q000628:therapy; D008297:Male; D011149:Pons / Q000098:blood supply* / Q000601:surgery; D011522:Protons; D016634:Radiosurgery; D013345:Subarachnoid Hemorrhage / Q000209:etiology
chemical_list: D011522:Protons