Abstract
We report the first case of a duplicate right coronary artery. Congenital coronary artery anomalies are rare with a benign clinical course. However, some anomalies can lead to cardiac ischaemia, arrhythmia, and sudden death. Coronary angiography used to be considered the diagnostic test of choice but recent advances in noninvasive Magnetic Resonance Imaging made it the investigation of choice for anatomical and functional assessment of congenital and acquired cardiac conditions. A 46-year-old South Asian man was referred for evaluation of exertional chest pain. He was a smoker with no other coronary risk factors. Physical examination was normal and he was unable to perform a treadmill test due to arthritis. A pharmacological stress myocardial perfusion scan was normal. Despite medical treatment, he continued to experience exertional chest pain and subsequently was referred for coronary angiography. At angiography, his left ventricular function, as well as his left coronary artery were normal. The right coronary
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