title: Vermal hemorrhage with fourth ventricle extension due to ruptured posterior inferior cerebellar artery aneurysm.
abstract: Distal posterior inferior cerebellar artery (PICA) aneurysm located at the choroidal branch is uncommon. We report a ruptured distal PICA aneurysm in a 50-year-old man who presented with sudden onset of coma. The management and clinical significance are highlighted.
authors.affiliation: Division of Neurosurgery, Department of Surgery, Prince of Wales Hospital, Shatin, New Territories, Chinese University of Hong Kong, China.
authors.forename: George K C
authors.initials: GK
authors.lastname: Wong
authors.forename: X L
authors.initials: XL
authors.lastname: Zhu
authors.forename: H K
authors.initials: HK
authors.lastname: Ng
authors.forename: Simon C H
authors.initials: SC
authors.lastname: Yu
authors.forename: W S
authors.initials: WS
authors.lastname: Poon
mesh_terms: D017542:Aneurysm, Ruptured / Q000150:complications*; D002533:Cerebral Angiography / Q000379:methods; D002536:Cerebral Arteries; D002543:Cerebral Hemorrhage / Q000209:etiology* / Q000473:pathology; D020546:Fourth Ventricle / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged