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Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: A variant branching pattern of the Aortic Arch: a case report. | Manyama et al. Journal of Cardiothoracic Surgery 2011 6 29 http www.cardiothoracicsurgery.Org content 6 1 29 JCTS JOURNAL OF CARDIOTHORACIC SURGERY CASE REPORT Open Access A variant branching pattern of the Aortic Arch a case report Mange Manyama 1 Peter Rambau1 Japhet Gilyoma2 William Mahalu1 Abstract Variant aortic arch branching pattern may occur with different embryological mechanisms. We report on a variant aortic arch branching in a 41-year old Tanzanian male cadaver during dissection practice. The left common carotid artery was seen originating from the root of the brachiocephalic trunk and the left vertebral artery from the arch of the aorta proximal to the origin of the left subclavian artery. We discuss the relative literature its potential embryologic development and clinical significance. Background The aortic arch is a continuation of the ascending aorta being located in the superior mediastinum. Three branches the brachiocephalic trunk left common carotid artery and left subclavian artery usually branch from the aortic arch. These branches may branch from the beginning of the arch or the upper part of the ascending aorta by varying distances between them. The brachiocephalic trunk later divides into right common carotid artery and right subclavian artery. Variations in the branching pattern of the aortic arch range from differences in the distance between origins of different branches to number of branches 1 2 . Reported variations in the aortic arch branching pattern include left common carotid artery originating from the brachiocephalic trunk right common carotid artery and right subclavian artery originating individually from the aortic arch 2 3 . Additionally left common carotid artery and left subclavian artery may have a common origin in the form of the left brachiocephalic trunk from the aortic arch. The left vertebral artery may also arise between the left common c arotid artery and left subclavian artery 4 . In this case report we present a .
