Intracavitary course of right coronary artery

A 64-year-old woman was referred to the cardiology department for evaluation of atypical chest pain. A cardiac computed tomography (CT) scan demonstrated a calcium score of zero and no coronary stenosis. As an incidental finding, the scan revealed an anomalous course of a 4-cm segment of the right coronary artery (RCA) within the right atrium. The CT scan is shown in Fig. 1. No abnormalities were noted in the other coronary arteries and branches