Anomalous origin of the circumflex artery with retro-aortic course

Discussion:

An anomalous origin of the left circumflex artery from the right coronary sinus is the most common congenital variant and is divided into three types:

  • Type I: Separate ostia for right coronary artery (RCA) and LCX.

  • Type II: Common ostia in the right sinus.

  • Type III: LCX arising as a branch of the proximal RCA.

These patients may develop coronary symptoms due to kinking/compression of a retroaortic course.

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