Kawate Toyoko, Futamata Haruo, Kitami Yoshikazu, Takeda Sen
Department of Anatomy and Cell Biology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan.
Anat Sci Int. 2008 Dec;83(4):267-72. doi: 10.1111/j.1447-073X.2007.00197.x.
Reported herein is a rare case of multiple vascular anomalies involving the vertebral vessels and the bronchial artery. In the present case the vertebral artery, which normally originates from the subclavian artery, arose directly from the cranial side of the aortic arch, just between the left common carotid and subclavian artery. Furthermore, the bilateral entry of the vertebral artery deviated to the upper level of the transverse foramen of the cervical vertebrae (C5). In addition, the left vertebral vein went through the transverse canal via the 5th and 7th transverse foramen, and drained into the left venous angle. Another conspicuous variation observed in this cadaver was the bronchial artery stemming from the left subclavian artery. This phenotype is an additional branch of bronchial arteries, which in normal cases arises from the descending aorta. These two anomalies could be explained by the deviation of the anlage for the left subclavian artery. The present report should be of interest for the clinician with regard to vascular anomalies in the neck and thoracic region, and may give insight into elucidating the developmental mechanism of angiogenesis.
本文报道了一例罕见的涉及椎动脉和支气管动脉的多发性血管异常病例。在本病例中，正常起源于锁骨下动脉的椎动脉直接发自主动脉弓的头侧，恰好在左颈总动脉和锁骨下动脉之间。此外，双侧椎动脉进入颈椎横突孔（C5）的位置偏高。另外，左椎动脉经第5和第7颈椎横突孔穿过横管，并汇入左静脉角。在这具尸体上观察到的另一个明显变异是支气管动脉发自左锁骨下动脉。这种表型是支气管动脉的一个额外分支，在正常情况下支气管动脉起源于降主动脉。这两种异常情况可以用左锁骨下动脉原基的偏移来解释。本报告对于临床医生了解颈部和胸部区域的血管异常可能具有参考价值，并且可能有助于深入阐明血管生成的发育机制。
