CTICasesAnomalous Left Main Coronary Artery from Right Coronary Artery with Septal Course
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Imaging findings
A 21-year-old male who had an out-of-hospital cardiac arrest was found to have an anomalous coronary artery where the left main coronary artery originated from the right coronary artery and took a septal course. He also incidentally had bilateral pulmonary emboli.
Key takeaways
Anomalous origin of the left main coronary artery from the right coronary artery with a septal course is a congenital anomaly that can be associated with cardiac arrest, even though it is often considered benign, especially with a wide ostium. The co-occurrence with other potential causes of arrest, such as bilateral pulmonary emboli, can complicate determining the precise etiology of the cardiac event.
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