Anomalous origin of left circumflex artery from right coronary sinus
Citation, DOI & case data
Belaval, V. Anomalous origin of left circumflex artery from right coronary sinus. Case study, Radiopaedia.org. (accessed on 04 Oct 2022) https://doi.org/10.53347/rID-72563
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30th Nov 2019
Belcity Scan and Diagnostic Centre
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Exertional chest pain.
Age: 50 years
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Axial C+ arterial phase
CT coronary angiography shows:
- Right dominant coronary circulation
- Anomalous origin of left circumflex (LCX) artery is seen from right coronary sinus with common ostium for both LCX and RCA. LCX courses postero-inferior to the aortic root to reenter anterior atrioventricular groove.
- Left main coronary artery (LMCA) continues as left anterior descending artery (LAD).
- Few eccentric mixed plaques are noted in proximal LAD causing 20-25% stenosis.
- No stenosis in rest of the coronary arteries.
- Atherosclerotic wall thickening and calcifications are noted in aortic root.
Congenital coronary artery anomalies can involve their origin, course and termination.
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- 2.So Yeon Kim, Joon Beom Seo, Kyung-Hyun Do, Jeong-Nam Heo, Jin Seong Lee, Jae-Woo Song, Yeon Hyeon Choe, Tae Hoon Kim, Hwan Seok Yong, Sang Il Choi, Koun-Sik Song, Tae-Hwan Lim. Coronary Artery Anomalies: Classification and ECG-gated Multi–Detector Row CT Findings with Angiographic Correlation1. (2006) RadioGraphics. 26 (2): 317-33; discussion 333-4. doi:10.1148/rg.262055068 - Pubmed