Figure 2: Computed tomographic angiography (CTA) images of the aortic valve and SCA. (A) Short axis view of the quadricuspid aortic valve. (B) Multi-planner reconstruction of coronary CTA with contrast showing the single coronary artery (SCA) arising from the right coronary cusp and its main branches. The left main coronary artery (LMCA) arises from the single coronary just after its takeoff from the right coronary cusp and taking a retro-aortic course. (C) and (D) rendered 3D formatted images showing the dilated ascending aorta (Asc Ao) and the origin and course of the SCA. LAD= left anterior descending artery; LCX= left circumflex artery; RCA= right coronary artery.