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Coincidence of a right retroaortic circumflex coronary artery and a right‐sided aortic arch with a retroesophageal course of the left subclavian artery (arteria lusoria)
Author(s) -
Kobayashi N.,
Takebayashi T.,
Saito S.,
Terashita T.,
Shimokawa T.,
Matsuda S.
Publication year - 2006
Publication title -
clinical anatomy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 71
eISSN - 1098-2353
pISSN - 0897-3806
DOI - 10.1002/ca.20193
Subject(s) - medicine , aortic arch , right coronary artery , anatomy , circumflex , aorta , right common carotid artery , subclavian artery , diverticulum (mollusc) , common carotid artery , esophagus , cardiology , radiology , artery , carotid arteries , coronary angiography , myocardial infarction
Abstract An anomalous branch of the right coronary artery was found in a 71‐year‐old male cadaver with a right‐sided aortic arch. The anomalous artery arose from the proximal portion of the right coronary artery and ran in a retroaortic course, before reaching the posterior wall of the heart. It was recognized as the right‐sided variation of the circumflex coronary artery. The aortic arch had as branches the left common carotid, right common carotid, right subclavian, and left subclavian arteries, in that order, and the descending aorta was located in the right thorax. The left subclavian artery arose from a Kommerell's diverticulum and ran behind the esophagus, and the left‐sided ligamentum arteriosum was also connected at the diverticulum. Therefore, the right aortic arch was classified as type N according to Adachi–Williams–Nakagawa and type III‐B1 in accordance with Stewart–Edwards. The Kommerell's diverticulum in this case seemed to press on the posterior wall of the esophagus. Clin. Anat. 19:354–357, 2006. © 2005 Wiley‐Liss, Inc.