Shreevastava Amit K, Das Rajat S, Maheshwari Tarun P, Damodhar Balkund K
Anatomy, All India Institute of Medical Sciences, Raebareli, IND.
Cureus. 2022 Aug 3;14(8):e27657. doi: 10.7759/cureus.27657. eCollection 2022 Aug.
Trifurcation of the common carotid artery in the neck region is a rare anatomical variation. In the present study, we reported a rare case having the combination of anomalies of the bilateral high common carotid arteries trifurcation and variable origin of lower branches of the external carotid artery during routine dissection of the head and neck region of a 60-year-old male cadaver in the Department of Anatomy. Both on the left and right sides of the neck region, the common carotid artery gave off three terminal branches: internal carotid artery, external carotid artery, and ascending pharyngeal arteries. Further, we also observed the presence of bilateral linguofacial trunks (common arterial trunks) that emerged from the external carotid arteries and also the left superior thyroid artery that originated directly from the left common carotid artery. Even though the embryogenesis of the variable origin of such arterial trunks is not apparent, it is very indispensable to have sound knowledge and better comprehension of the accurate anatomical architecture of such a rare combination of carotid arterial system anomalies for correct interpretation of the vascular imaging that pave the pathway for successful execution of surgical interventions in the neck region because of its utmost clinical implication.
颈部区域颈总动脉的三分叉是一种罕见的解剖变异。在本研究中，我们报告了一例罕见病例，在解剖学系对一名60岁男性尸体的头颈部进行常规解剖时，发现双侧颈总动脉高位三分叉和颈外动脉下部分支起源变异同时存在。在颈部区域的左侧和右侧，颈总动脉均发出三个终末分支：颈内动脉、颈外动脉和咽升动脉。此外，我们还观察到双侧舌面干（共同动脉干）从颈外动脉发出，以及左侧甲状腺上动脉直接起源于左颈总动脉。尽管这种动脉干起源变异的胚胎发生尚不明确，但对于正确解读血管成像而言，深入了解并更好地掌握这种罕见的颈动脉系统异常组合的精确解剖结构至关重要，因为这对于在颈部区域成功实施手术干预具有极其重要的临床意义，为手术干预的成功执行铺平了道路。
