Origin of all major coronary arteries from left sinus of Valsalva as a common coronary trunk: single coronary artery--a case report.

Coronary anomalies are divergent and can occur in up to 1% to 2% of patients. The most common of these anomalies is separate ostia of the left anterior descending and left circumflex arteries, followed by origin of the circumflex coronary artery from the right coronary artery and the left coronary artery from the right sinus of Valsalva, either as a separate ostium or as a part of single coronary artery. Anomalous origin of right coronary artery from the left sinus of Valsalva with a separate ostium or from the left main coronary artery is very rare. These coronary anomalies may be incidentally diagnosed on routine angiography or may present with myocardial ischemia, infarction, or sudden death. A case is described in which all 3 coronary arteries were originating from the left sinus of Valsalva as a common trunk (single coronary artery), which trifurcated to left anterior descending, left circumflex, and right coronary artery.