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Right Aortic Arch with Bicarotid Trunk and Isolated Left Subclavian Artery: Hitherto Unreported PatternFunding None.
Variant arch anatomy may be seen associated with many congenital heart diseases. Its accurate preoperative identification is of paramount importance in optimal surgical planning of such cases. This case describes one such variant arch anatomy with two vessel right aortic arch, comprising of bicarotid trunk (giving rise to bilateral common carotid arteries) and right subclavian artery with isolation of the left subclavian artery, in a patient with tetralogy of Fallot. Right aortic arch with isolated left subclavian artery has already been described in association with tetralogy of Fallot. However, to the best of our knowledge, present arch pattern consisting of right aortic arch with bicarotid trunk and isolated left subclavian artery has not been reported in literature so far. Moreover, this case highlights the utility of multidetector computed tomography in accurate identification of variant arch anatomy in addition to delineation of cardiac and extracardiac details.
Keywordsright aortic arch - isolated left subclavian artery - bicarotid trunk - arch anomalies - tetralogy of Fallot - multidetector CT
* Contributed equally with the first author and shares the first authorship.
Article published online:
16 June 2023
© 2023. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
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- 1 Buffoli B, Verzeletti V, Hirtler L, Rezzani R, Rodella LF. Retroesophageal right subclavian artery associated with a bicarotid trunk and an ectopic origin of vertebral arteries. Surg Radiol Anat 2021; 43 (09) 1491-1495
- 2 Wang K, Zhang M, Sun J, Zhao S. A right-left aortic arch pattern made up by a bicarotid trunk, a left subclavian, a left vertebral and a right retroesophageal subclavian artery. Surg Radiol Anat 2011; 33 (10) 937-940
- 3 Hanžič N, Čizmarević U, Lesjak V, Caf P. Aberrant right subclavian artery with a bicarotid trunk: the importance of diagnosing this rare incidental anomaly. Cureus 2019; 11 (11) e6094
- 4 Sharma A, Rana P, Naganur SH, Singhal M. Right aortic arch with bicarotid trunk and aberrant left subclavian artery. Indian J Radiol Imaging 2022; 33 (02) 278-279
- 5 Luetmer PH, Miller GM. Right aortic arch with isolation of the left subclavian artery: case report and review of the literature. Mayo Clin Proc 1990; 65 (03) 407-413
- 6 Alhuzaimi AN, Aldawsari KA, AlAhmadi M. Isolated left subclavian artery with right aortic arch: case report and literature review of 50 cases. Gen Thorac Cardiovasc Surg 2021; 69 (05) 885-889
- 7 Pandey NN, Sharma A, Kumar S. Bicarotid trunk in a double aortic arch: a previously undescribed variant. Ann Thorac Surg 2019; 107 (05) e357
- 8 Siripornpitak S, Pornkul R, Khowsathit P, Layangool T, Promphan W, Pongpanich B. Cardiac CT angiography in children with congenital heart disease. Eur J Radiol 2013; 82 (07) 1067-1082
- 9 Dillman JR, Hernandez RJ. Role of CT in the evaluation of congenital cardiovascular disease in children. Am J Roentgenol 2009; 192 (05) 1219-1231