Department of Neurology, Wroclaw Medical University, Wroclaw, Poland.
Department of General Radiology, Interventional Radiology and Neuroradiology, Wroclaw Medical University, Wroclaw, Poland.
Folia Morphol (Warsz). 2022;81(3):785-790. doi: 10.5603/FM.a2021.0067. Epub 2021 Jul 5.
The persistent trigeminal artery (PTA) is the most common foetal carotid-basilar anastomosis which may persist into adult life. In the literature there are numerous papers referring to the anatomical characteristics of this anomalous vessel. In the majority of cases PTA is an incidental finding and its clinical significance has been debated. Some authors describe the coincidence of PTA with various clinical syndromes. However, there are few reports linking PTA with the symptoms of vertebrobasilar insufficiency. We present a patient with a 3-year history of recurrent dizziness and impaired vision, precipitated by physical activity, in whom neuroimaging techniques revealed a left PTA. In our case the occurrence of PTA might have been related to the clinical manifestation and the potential mechanism will be discussed.
永存三叉动脉（PTA）是最常见的胎儿颈动脉-基底动脉吻合支，可能持续存在于成年期。在文献中有许多论文提到了这种异常血管的解剖学特征。在大多数情况下，PTA 是偶然发现的，其临床意义一直存在争议。一些作者描述了 PTA 与各种临床综合征的巧合。然而，很少有报道将 PTA 与椎基底动脉供血不足的症状联系起来。我们报告了一例患者，其病史为 3 年，反复发作性头晕和视力障碍，由体力活动诱发，神经影像学检查显示左侧 PTA。在我们的病例中，PTA 的发生可能与临床表现有关，潜在的机制将被讨论。
