Anomalous septal artery originating from the right coronary sinus and detection of the interarterial course using multislice computed tomography (MSCT).

Anomalies of the coronary arteries are uncommon but may produce life-threatening symptoms and myocardial ischemia. Multislice computed tomography (MSCT) has become a major technique for imaging the coronary arteries. We present a case of a patient with a septal and a circumflex arteries originating from the right coronary sinus and a duplicate left anterior descending artery. The interarterial course of the septal branch is clearly demonstrated with MSCT technique as the abnormal circumflex artery that coursed posterior to the aortic root.