Double origin of the posterior inferior cerebellar artery with findings on conventional and CT angiography.
A case of double origin of the posterior inferior cerebellar artery (PICA) is presented, with appearances on both cross-sectional imaging and conventional angiography. An associated aneurysm was found, strengthening the belief that this variation is associated with intracranial aneurysms. Furthermore, this is the first report of a right-sided double-origin PICA in a female patient, which calls into question the previously proposed male and left-sided preponderance of this variation.
Plumb
Andrew A
AA
Department of Radiology, Greater Manchester Neurosciences Centre, Greater Manchester, UK. aaoplumb@hotmail.com
Herwadkar
Amit
A
Laitt
Roger
R
D002531:Cerebellum / Q000098:blood supply*; D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000209:etiology; D008875:Middle Aged; D014057:Tomography, X-Ray Computed