Miller Paul A, Oberg Kerby C, Sun Alex, Achiriloaie Adina
School of Medicine, Loma Linda University Medical Center, Loma Linda, CA, USA.
Department of Human Anatomy, Loma Linda University Medical Center, Loma Linda, Ca, USA.
J Radiol Case Rep. 2019 Sep 30;13(9):28-35. doi: 10.3941/jrcr.v13i9.3601. eCollection 2019 Sep.
Persistent primitive hypoglossal artery is a carotid-vertebrobasilar anastomosis, which commonly arises from the internal carotid artery at the level of the C (cervical) 1-3 vertebrae. We describe a unique case of a female infant patient with this anomaly that has an unusually low origin from the distal common carotid artery just below the bifurcation at the level of roughly C5 and supplies the entire vertebrobasilar system. Additional cardiovascular anatomical variations were present: Tetralogy of Fallot and a right-sided aortic arch with mirror image branching. These singular variations are rare in the general population, but even rarer when combined. Awareness of these unusual vascular variants is clinically significant, as they may predispose the patients to early ischemic injury, hemorrhage, aneurysm formation, and can be essential in surgical planning. Therefore, radiographic imaging is of importance in proper diagnosis of such variants.
永存原始舌下动脉是一种颈动脉 - 椎基底动脉吻合支，通常起源于颈1 - 3椎体水平的颈内动脉。我们描述了一例患有这种异常的女婴患者的独特病例，该异常起源于大约C5水平分叉下方的远侧颈总动脉，位置异常低，并供应整个椎基底系统。还存在其他心血管解剖变异：法洛四联症和镜像分支的右侧主动脉弓。这些独特的变异在普通人群中很少见，而当它们同时出现时则更为罕见。认识到这些不寻常的血管变异具有临床意义，因为它们可能使患者易患早期缺血性损伤、出血、动脉瘤形成，并且在手术规划中至关重要。因此，放射影像学对于正确诊断此类变异很重要。
