PMC6948275_01
Right coronary artery arising from the right coronary sinus. Left anterior oblique cranial view showing a dominant right coronary artery arising from the right coronary sinus.
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During coronary angiography, the right coronary artery was engaged without difficulty using a 6Fr Williams right catheter and looked normal in appearance (Figure 1 and Online ); the left coronary artery was also seen arising posterior-inferiorly adjacent to the right coronary ostium.
Anomalous left coronary artery arising from the right coronary sinus. Right anterior oblique cranial view (a) and left anterior oblique caudal view (b) showing an anomalous left coronary artery arising from the right coronary sinus with a long left main artery (red arrows) that bifurcates into a left anterior descending (green arrows) and left circumflex coronary artery (yellow arrow).
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Selective injection from this position using a 6Fr multipurpose catheter revealed an anomalous left coronary artery arising from the right coronary sinus (Figures 2(a), 2(b), and 3 and Online Videos , , and ).