title: Ruptured aneurysm at the perforating artery supplying the insula: case report.
abstract: OBJECTIVE
  Aneurysms originating from perforating branches of the middle cerebral artery are quite rare. Most of them arise from the lenticulostriate arteries, frequently located within the basal ganglia. We report a perforating artery aneurysm that was entirely embedded within the limen insulae.
  
  
  METHODS
  A 41-year-old man presented with an insular hematoma without subarachnoid hemorrhage caused by rupture of a small aneurysm on a perforating artery of the proximal middle cerebral artery supplying the insula.
  
  
  METHODS
  This rare aneurysm was resected via the transsylvian-insular approach.
  
  
  CONCLUSIONS
  Although very rare, perforating artery aneurysms should be considered in young or middle-aged patients with an atypical intracerebral hematoma. This report discusses radiological and surgical characteristics of this unusual aneurysm.
authors: Department of Neurosurgery, School of Medicine, Hacettepe University, Ankara, Turkey. servet@mailcity.com
authors: Servet
authors: S
authors: Inci
authors: Atila
authors: A
authors: Akbay
authors: Burcu
authors: B
authors: Hazer
authors: Kivilcim
authors: K
authors: Yavuz
authors: Tuncalp
authors: T
authors: Ozgen
mesh_terms: D000328:Adult; D017542:Aneurysm, Ruptured / Q000473:pathology* / Q000601:surgery*; D002533:Cerebral Angiography / Q000379:methods; D002540:Cerebral Cortex / Q000601:surgery*; D003399:Craniotomy / Q000379:methods*; D006801:Humans; D008297:Male; D019635:Neurosurgical Procedures / Q000379:methods*