title: Fusiform aneurysm of the anterior communicating artery treated by vascular reconstruction: case report.
abstract: OBJECTIVE
  Fusiform aneurysm of the anterior cerebral artery is rare and difficult to treat because of perforators. We encountered a patient with subarachnoid hemorrhage due to rupture of a fusiform aneurysm of the anterior communicating artery complex, and treated this patient with cerebral revascularization.
  
  
  METHODS
  A 39-year-old man presented with sudden severe headache resulting from subarachnoid hemorrhage. Digital subtraction angiography showed dilatation from the distal A1 segment to the proximal A2 segment of the left anterior cerebral artery. Despite intensive conservative treatment, repetitive angiography showed aneurysmal growth from this dilated portion.
  
  
  METHODS
  Proximal clipping and clip-on wrapping on the A2 segment was successfully performed with a A3-A3 bypass. He was discharged without neurological deficit.
  
  
  CONCLUSIONS
  Cerebral revascularization technique is necessary to achieved appropriate obliteration without ischemic complications.
authors.affiliation: Department of Neurosurgery and Stroke Unit, Kanto Medical Center, NTT EC, Tokyo, Japan.
authors.forename: Toshikazu
authors.initials: T
authors.lastname: Kimura
authors.forename: Kengo
authors.initials: K
authors.lastname: Nishimura
authors.forename: Syunsuke
authors.initials: S
authors.lastname: Fukaya
authors.forename: Akio
authors.initials: A
authors.lastname: Morita
mesh_terms: D000328:Adult; D017542:Aneurysm, Ruptured / Q000601:surgery*; D015901:Angiography, Digital Subtraction; D002548:Cerebral Revascularization / Q000379:methods*; D006801:Humans; D002532:Intracranial Aneurysm / Q000601:surgery*; D008297:Male; D013345:Subarachnoid Hemorrhage / Q000601:surgery*