Chiang Florence L, Zafar Abdul M, Bazan Carlos
Department of Radiology, University of Texas Health Science Center at San Antonio, USA.
Neuroradiol J. 2017 Apr;30(2):172-174. doi: 10.1177/1971400916684668. Epub 2017 Jan 6.
A persistent trigeminal artery (PTA) is the most common carotid-vertebrobasilar anastomosis. PTA variants terminating on cerebellar arteries instead of the basilar artery have been reported previously. We present the first case of a PTA communicating with a fetal posterior communicating artery identified on a magnetic resonance angiogram. An understanding of these anatomical variants is important to clarify pathological processes that can help guide neurosurgical and endovascular procedures.
持续性三叉动脉（PTA）是最常见的颈动脉-椎基底动脉吻合。先前已有报道PTA变异终止于小脑动脉而非基底动脉。我们报道首例在磁共振血管造影上发现的与胎儿后交通动脉相通的PTA。了解这些解剖变异对于阐明可有助于指导神经外科和血管内手术的病理过程很重要。
