Multiple Choice Question of the Week : CT-05 : [Answer]

             
      

60 yo with previous history of PCI+stent on RCA.

Which coronary anomaly is evident?

A – Anomalous aortic origin of the right coronary artery from the left coronary sinus with an interarterial course (between aorta and pulmonary artery) and myocardial bridge of the left main
B – Anomalous aortic origin of the left main from the right coronary sinus with an interarterial course (between aorta and pulmonary artery) and myocardial bridge of the left main
C – Anomalous aortic origin of the left circumflex from the right coronary sinus with an retroaortic course and myocardial bridge of the left main
D – Anomalous aortic origin of the left main from the right coronary sinus with a retroaortic course and myocardial bridge of the left main

Right answer is B.

Anomalous aortic origin of a coronary artery (AAOCA) is a congenital abnormality of the origin or course of a CA that arises from the aorta. High-risk lesions include origin of the coronary artery from the opposite sinus of Valsalva, intramural course and ostial abnormalities (stenosis, hypoplasia). References: Molossi S., Congenital Heart Disease 2017; Molossi S, Circ Cardiovasc Interventions 2017.

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