CTICasesDual LAD Coronary Artery Anomaly
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[...]. Dual LAD Coronary Artery Anomaly. CTICases. Published October 16, 2015. https://cticases.com/c/tncbe
Imaging findings
The left main coronary artery shows calcified plaque. The first diagonal branch of the LAD is diminutive, as is the presumed second diagonal. Another vessel, originating from a conal branch of the right coronary artery (RCA), is seen filling in, acting as a replaced LAD, while the original LAD is diminutive.
Key takeaways
This case presents a rare congenital coronary artery anomaly: a dual LAD system where a conal branch from the RCA provides collateral supply to the LAD territory, while the native LAD is underdeveloped. This variant is not commonly encountered.
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