Right Coronary Artery Arising From the Left Circumflex Demonstrated With Multislice Computed Tomography
A 38-year-old man was referred to our institution for suspected coronary artery disease. Because of his young age and rather atypical symptoms, we decided to perform multislice computed tomography coronary angiography before other invasive studies. The scan was performed with a 16-row multislice computed tomography scanner (Sensation 16; Siemens) after intravenous administration of iodinated contrast material. It revealed absence of the right coronary artery and a split origin of the left coronary artery (Figure 1, Movie I). The left circumflex artery lay in the posterior atrioventricular groove ending near the ascending aorta on the opposite side of its own origin (Figure 1, Movie I). The findings have been confirmed by coronary angiography (Figure 2, Movies II and III).
Movies I, II, and III are available in the Data Supplement at http://www.circulationaha.org.
The editor of Images in Cardiovascular Medicine is Hugh A. McAllister, Jr, MD, Chief, Department of Pathology, St Luke's Episcopal Hospital and Texas Heart Institute, and Clinical Professor of Pathology, University of Texas Medical School and Baylor College of Medicine.
Circulation encourages readers to submit cardiovascular images to the Circulation Editorial Office, St Luke's Episcopal Hospital/Texas Heart Institute, 6720 Bertner Ave, MC1-267, Houston, TX 77030.