title: Intracanalicular aneurysm of the anterior inferior cerebellar artery revealed by multi-detector CT angiography.
abstract: A 62-year-old woman had sudden-onset headache and posterior neck pain, and a subarachnoid hemorrhage was revealed by unenhanced CT. Both multi-detector CT angiography and digital subtraction angiography were performed and revealed a small intracanalicular aneurysm of the left anterior inferior cerebellar artery. The patient underwent successful retrosigmoid craniectomy and trapping of the aneurysm. This case shows the ability of multi-detector CT angiography to indicate bony landmarks that can alter the surgical approach.
authors.affiliation: Department of Diagnostic Imaging, Brown Medical School/Rhode Island Hospital, 3rd Floor, Main, 593 Eddy Street, Providence, RI 02903, USA.
authors.forename: Mahesh V
authors.initials: MV
authors.lastname: Jayaraman
authors.forename: William W
authors.initials: WW
authors.lastname: Mayo-Smith
authors.forename: Curtis E
authors.initials: CE
authors.lastname: Doberstein
mesh_terms: D015901:Angiography, Digital Subtraction; D001158:Arteries / Q000473:pathology; D002531:Cerebellum / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000473:pathology; D002533:Cerebral Angiography / Q000379:methods*; D003389:Cranial Nerve Diseases / Q000175:diagnosis; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis*; D008875:Middle Aged; D014057:Tomography, X-Ray Computed