Tanaka H, Yamaki K, Saga T, Doi Y, Hirata T, Aida K, Harada H, Araki Y, Yoshizuka M
Department of Anatomy, Kurume University School of Medicine, Japan.
Kurume Med J. 1997;44(2):147-52. doi: 10.2739/kurumemedj.44.147.
This report describes a rare case of the right-sided aortic arch with the right subclavian artery as the last branch, which was encountered in a Japanese male cadaver in the dissecting room at Kurume University School of Medicine in 1995. In this subject, the ascending aorta arose from the left ventricle and ascended obliquely, curving forward and to the right, and became the right-sided aortic arch. The aortic arch passed upwards, reaching a summit at the level of the third thoracic vertebral body, then curved dorsally. The left brachiocephalic, the right common carotid and the right subclavian arteries came off the aortic arch in that order. After the right subclavian artery, the aortic arch dilated and formed the aortic diverticulum behind the trachea and the esophagus. The right thoracic aorta, a continuation of the aortic arch, descended to the right of the vertebral column. This case is a type M anomaly according to the Adachi-Williams-Nakagawa's classification, and is the twelfth case with this type of vascular variation to be reported in Japan.
本报告描述了一例罕见的右侧主动脉弓病例，其右锁骨下动脉为最后一个分支，该病例于1995年在久留米大学医学院解剖室的一具日本男性尸体上发现。在该病例中，升主动脉起自左心室，斜向上走行，向前向右弯曲，形成右侧主动脉弓。主动脉弓向上走行，在第三胸椎水平达到顶点，然后向后弯曲。左头臂干、右颈总动脉和右锁骨下动脉依次从主动脉弓发出。右锁骨下动脉发出后，主动脉弓扩张并在气管和食管后方形成主动脉憩室。作为主动脉弓延续的右胸主动脉在脊柱右侧下行。根据足立-威廉姆斯-中川分类法，该病例为M型异常，是日本报道的第十二例这种类型的血管变异病例。
