[A single coronary artery exiting the left sinus of Valsalva: 3 different pathways of the right branch].

Three old male patients with a single coronary artery from the left Valsalva sinus and three different origin of right branch (left anterior descending, left main and circumflex artery) are reported here; first and second patients, with an aberrant trayect of the right coronary artery. We describe anatomic and angiographic findings with a literature review.