CTICasesAnomalous Left Main Coronary Artery from Non-Coronary Sinus
Imaging findings
Coronary CT angiography demonstrates the left main coronary artery arising anomalously from the non-coronary sinus. The vessel has an ovoid cross-section and courses within the aortic wall (intramural course).
Key takeaways
An anomalous left main coronary artery arising from the non-coronary sinus is an extremely rare congenital anomaly. The presence of an intramural or interarterial course carries a risk of compression, leading to myocardial ischemia or sudden death.
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