Percutaneous coronary intervention on a single coronary artery: case report.

An isolated single coronary artery is a rare congenital anomaly and an uncommon finding in patients undergoing coronary angiography. In this report, we describe a rare case of a patient who had an anomaly of the left and right coronary arteries with a single coronary ostium in the right sinus of Valsalva, in which percutaneous coronary intervention was successfully performed in the right coronary artery.