Anomalous Left Circumflex Origin From Right Pulmonary Artery: Concern for Coronary Steal Revealed by Multimodal Imaging.

ABSTRACT:

Background

Coronary artery anomalies occur in 0.03% to 0.28% of the population, with anomalous left circumflex artery from right pulmonary artery (AoLCx-RPA) a rare subset associated with increased ischemia risk and cardiac death. Early recognition and functional assessment are essential for optimal management given limited guidelines.

Case summary

We present a 43-year-old man with no significant history who developed 1-month exertional dyspnea, electrocardiographic changes, and elevated troponin concerning for non-ST-segment elevation myocardial infarction. Coronary angiography revealed nonobstructive arteries with retrograde filling via right coronary artery collaterals, suggestive of anomalous left circumflex artery. Multimodal imaging-including computed tomography angiog

SUBMITTER: Pathangey G 

PROVIDER: S-EPMC12273817 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature