PMC5963140_01
Computer tomography showing the origin of the RCA. The RCA departing from the left coronary sinus close to the pulmonary artery with a course anteriorly to aorta. Normal morphology of the left coronary artery.
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The proximal part of the RCA seemed to be coursing intramurally in the aortic vessel wall before running between the aorta and pulmonary artery (Fig. 1, Fig. 2).