title: Balloon-assisted coil embolization of a posterior cerebral artery aneurysm via a persistent primitive trigeminal artery: technical note.
abstract: BACKGROUND
  We present a patient with an acutely ruptured, wide-necked aneurysm of the left posterior cerebral artery (PCA) treated with Guglielmi detachable coils using the remodeling technique.
  
  
  METHODS
  Since the left vertebral artery was compressed due to a tumor in the cerebellopontine angle and the right vertebral artery was hypoplastic, we used a carotid artery approach via a persistent primitive trigeminal artery (PPTA) to selectively catheterize the aneurysm.
  
  
  RESULTS
  The aneurysm was occluded completely.
  
  
  CONCLUSIONS
  To our knowledge this is the first case of a wide-necked PCA aneurysm treated via a PPTA and using the remodeling technique. In patients with hypoplastic vertebral arteries and a PPTA, this approach may represent an alternative for selective embolization of posterior circulation aneurysms not amenable to the conventional approach.
authors.affiliation: Department of Neuroradiology, Institute of Diagnostic and Interventional Radiology, University of Essen Medical School, Hufelandstr. 55, 45122 Essen, Germany. marc.schlamann@uni-essen.de
authors.forename: Marc
authors.initials: M
authors.lastname: Schlamann
authors.forename: Arnd
authors.initials: A
authors.lastname: Doerfler
authors.forename: Beate
authors.initials: B
authors.lastname: Schoch
authors.forename: Michael
authors.initials: M
authors.lastname: Forsting
authors.forename: Isabel
authors.initials: I
authors.lastname: Wanke
mesh_terms: D000328:Adult; D021721:Balloon Occlusion / Q000379:methods*; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000628:therapy*; D002538:Intracranial Arteriovenous Malformations / Q000196:embryology; D020769:Posterior Cerebral Artery