[Anomalous single coronary artery presenting as typical angina pectoris: a case report].

Single coronary artery is described as an isolated coronary artery originating from the aortic root through a single ostium in the absence of another ostium, where isolated coronary artery is the only source for blood supply to the whole heart. We present a 53-year-old woman whose coronary angiography for typical chest pain revealed an isolated single coronary artery. On coronary angiography, the whole coronary system originated by a single trunk from the right sinus of Valsalva. Multislice computed tomography showed that the left anterior descending, circumflex, and right coronary arteries arose from a single ostium in the right sinus of Valsalva without a left main trunk. Despite maximal medical therapy, her chest pain persisted. The patient did not accept surgical treatment proposed for correction of the anomaly.