Right coronary arterial dominance with type III LAD

Case contributed by Mohamed Walaaedlin


Hypertension with hyperlipidemia and abnormal electrocardiogram.

Patient Data

Age: 45 years
Gender: Male

CT coronary angiography


CT coronary angiography reveals:

The posterior descending artery (PDA) arises from the right coronary artery (RCA).

The left anterior descending artery (LAD) wraps around the cardiac apex into the posterior interventricular groove (type III). 

No significant coronary artery stenosis identified.

Case Discussion

This case shows an example of a right dominant coronary circulation with type III left anterior descending artery (LAD). 

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