title: Technical strategies to approach aneurysms of the vertebral and posterior inferior cerebellar arteries.
abstract: OBJECTIVE
  Aneurysms of the vertebral artery (VA) and proximal posterior inferior cerebellar artery (PICA) are rare and challenging lesions, as they are located in front of the brainstem and surrounded by the lower cranial nerves. Many different approaches have been described for their treatment, and have yielded different results. With the use of different examples of lesions, the authors describe their surgical strategy in the management of VA and PICA aneurysms.
  
  
  METHODS
  The far-lateral approach was used, and the potential of its different extensions according to the specific anatomical location and configuration of different types of aneurysms is emphasized.
  
  
  CONCLUSIONS
  With the present knowledge of the microsurgical anatomy in the region of the foramen magnum, the far-lateral approach can be tailored to the specific anatomical and morphological configuration of an aneurysm in this region with good surgical results.
authors.affiliation: Department of Neurosurgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA. nkrayenbuehl@bluewin.ch
authors.forename: Niklaus
authors.initials: N
authors.lastname: Krayenbuhl
authors.forename: Carlos
authors.initials: C
authors.lastname: Guerrero
authors.forename: Ali F
authors.initials: AF
authors.lastname: Krisht
mesh_terms: D002531:Cerebellum / Q000098:blood supply* / Q000473:pathology / Q000601:surgery*; D006801:Humans; D002532:Intracranial Aneurysm / Q000473:pathology / Q000601:surgery*; D019635:Neurosurgical Procedures / Q000379:methods*; D014711:Vertebral Artery / Q000473:pathology / Q000601:surgery*