title: Giant aneurysm of distal posterior inferior cerebellar artery: a case report and review of the literature.
abstract: BACKGROUND
  Aneurysms in the vertebrobasilar system are rare and in the distal segment of the posterior inferior cerebellar artery they are even less frequent. Giant aneurysms are also rare in the posterior cranial fossa. Giant aneurysms of the distal posterior inferior cerebellar artery generally can have mainly compressive effects on the adjacent structures and they can be mistaken for tumors.
  
  
  METHODS
  We report the case of a 74-year-old Italian woman who presented with a complaint of dizziness. Her dizziness was found to be a result of aneurysmal dilatation arising from the distal segment of the right posterior inferior cerebellar artery. A mid-line suboccipital craniotomy was performed, and the aneurysm was clipped without post-operative deficits and with improvement in the patient's dizziness. In our present report, we also review the literature and discuss our case with regard to the clinical and radiological features and surgical procedure performed.
  
  
  CONCLUSIONS
  To the best of our knowledge, few cases of this type of aneurysm have been described in the literature. Our patient had a good outcome after surgical treatment.
authors.affiliation: Department of Neurosurgery, "San Salvatore" City Hospital, via Vetoio, Coppito, L'Aquila 67100, Italy. doflamingo82@gmail.com.
authors.forename: Domenico
authors.initials: D
authors.lastname: Murrone
authors.forename: Danilo
authors.initials: D
authors.lastname: De Paulis
authors.forename: Massimo
authors.initials: M
authors.lastname: Gallieni
authors.forename: Mattia
authors.initials: M
authors.lastname: Del Maestro
authors.forename: Alessandro
authors.initials: A
authors.lastname: Ricci
authors.forename: Renato J
authors.initials: RJ
authors.lastname: Galzio
mesh_terms: D000368:Aged; D002531:Cerebellum / Q000098:blood supply*; D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D014711:Vertebral Artery / Q000000981:diagnostic imaging* / Q000601:surgery