Murlimanju B-V, Prabhu Latha V, Pai Mangala M, Jayaprakash Dhanya, Saralaya Vasudha V
Department of Anatomy, Centre for Basic Sciences, Kasturba Medical College, Manipal University, Bejai, Mangalore, Karnataka, India.
Chang Gung Med J. 2012 May-Jun;35(3):281-4. doi: 10.4103/2319-4170.106143.
The left superior laryngeal artery was observed arising from the external carotid artery instead of the superior thyroid artery in the cadaver of an approximately 70 year-old Asian man. In addition, on the same side, the superior thyroid artery arose from the common carotid artery 2 cm before the bifurcation instead of its usual origin from the external carotid artery. From the external carotid artery, the lingual and facial arteries arose from the common linguofacial trunk. The nerves in the carotid triangle were normal in course. No variations were observed on the right side carotid system. The multiple variations in this case have not been previously described. The embryogenesis of this combination of variations is not clear, but the anatomic consequences may have important clinical implications. As angiography has gained popularity in diagnostic approaches in recent years, it is essential to be aware of these variations so that they are not overlooked in differential diagnoses.
在一名约70岁亚洲男性尸体中，观察到左喉上动脉起自颈外动脉而非甲状腺上动脉。此外，在同一侧，甲状腺上动脉起自颈总动脉分叉前2厘米处，而非通常起自颈外动脉。舌动脉和面动脉从颈外动脉发出，共同形成舌面干。颈动脉三角内的神经走行正常。右侧颈动脉系统未见变异。这种情况下的多种变异此前未见报道。这种变异组合的胚胎发生尚不清楚，但解剖学后果可能具有重要的临床意义。近年来，血管造影在诊断方法中越来越普及，因此必须了解这些变异，以免在鉴别诊断中被忽视。
