Giant Coronary Artery Aneurysm in a Middle-Aged Woman

Giant coronary artery aneurysm (CAA) is a rare clinicopathologic entity, and there is a dearth of information regarding presentation, diagnosis, and subsequent management. We present a case of a giant aneurysm of the proximal right coronary artery (RCA) that was 1.5 × 1.5 cm with direct communication between the aneurysmal cavity and the aortic sinus. The deficit in the RCA ostium was closed with a patch of bovine pericardium. The distal communication of the aneurysm to the mid-RCA was clearly delineated and tied off. The distal RCA was grafted under bypass with a long saphenous vein. Although our case is not unique, it does represent an uncommon presentation of a rare disease process.