TAILIEUCHUNG - Báo cáo khoa học: "Left costocervical vein malformation with anomalous ramification of aortic arch in a dog"

Tuyển tập các báo cáo nghiên cứu khoa học quốc tế về bệnh thú y đề tài: Left costocervical vein malformation with anomalous ramification of aortic arch in a dog | J. Vet. Sci. 2003 4 3 205-208 JOURNAL OF Veterinary Science Left costocervical vein malformation with anomalous ramification of aortic arch in a dog Young Sam Nam Choong Hyun Lee Dae Won Chung Yeo Sung Yoon Heungshik S. Lee and In Se Lee Department of Anatomy and Cell Biology College of Veterinary Medicine and School of Agricultural Biotechnology Seoul National University Seoul 151-742 Korea This report describes coexistence of anomalous branches of the aortic arch and the costocervical vein malformation in a German shepherd dog. The first branch of the aortic arch was a bicarotid trunk that divided into the left and right common carotid arteries. The next branch to leave the aortic arch was a common trunk for the right and left subclavian arteries a bisubclavian trunk which was immediately bifurcated. The right subclavian artery passed over the esophagus forming a deep groove so-called incomplete vascular ring on the dorsal wall of the esophagus. Although the esophagus was constricted by the right subclavian artery dorsally and by the trachea ventrally no clinical symptoms of esophageal obstruction and dysphagia were observed. The left costocervical vein coursed caudoventrally passed over the aortic arch and entered the left ventricle. This vessel was much smaller than the right costocervical vein and was partially occluded at its origin. Key words anomaly aortic arch costocervical vein german shepherd dog Introduction Anomalous branching patterns of the aortic arch and termination of the left costocervical vein were encountered in a dog cadaver in the dissecting room at the College of Veterinary Medicine Seoul National University. Anomalies in the great vessels and of the heart are of interest from the surgical point of view and many reports on anomalous aortic arches and their tributaries in animals and humans have been published 3 10 14 15 19 22 . During normal embryonic development the formation of Corresponding author Phone 82-2-880-1271 82-2-880-1275 Fax .

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