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Right coronary artery intra-cavitary course

Case contributed by Dr Yune Kwong


Incidental finding on coronary CT.

Patient Data

Age: 45 years old
Gender: Female

ECG-gated coronary CT angiogram

Right coronary artery is initially seen to run in the epicardial fat, but the mid-RCA (arrows) subsequently runs inside the right atrium (intra-cavitary) instead of within the epicardial fat.

Case Discussion

Intra-cavitary course of the right coronary artery is increasingly recognized with improving CT technology. The significance of this course is that it may complicate bypass grafting, and the RCA can be accidentally damaged during pacemaker insertion, invasive electrophysiological procedures, or right heart catheterization.

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Case information

rID: 30519
Published: 16th Aug 2014
Last edited: 14th Aug 2019
System: Cardiac
Inclusion in quiz mode: Included

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