Plumb Andrew A, Herwadkar Amit, Laitt Roger
Department of Radiology, Greater Manchester Neurosciences Centre, Greater Manchester, UK.
Surg Radiol Anat. 2009 Jun;31(5):393-5. doi: 10.1007/s00276-008-0448-9. Epub 2008 Dec 11.
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.
本文报告一例小脑后下动脉（PICA）双起源病例，并展示了其横断面成像和传统血管造影的表现。发现了一个相关的动脉瘤，这进一步支持了这种变异与颅内动脉瘤有关的观点。此外，这是首例关于女性患者右侧PICA双起源的报告，这对先前提出的该变异在男性和左侧更为常见的观点提出了质疑。
