Giant Coronary Artery Aneurysm Seen on Blood-Pool Study

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Abstract

An 81-year-old man was incidentally found to have a large pericardial cyst on a chest computed tomography. Before surgical removal, an echocardiogram demonstrated that the cyst was more likely a large (7.5 cm) right coronary arterial aneurysm. A cardiac blood-pool study demonstrated a blood-filled structure adjacent to the heart, roughly the same size as the combined size of both the right and left ventricles. Coronary angiography confirmed the presence of a large right coronary artery aneurysm. A coronary aneurysm should be considered when a blood-filled structure is seen adjacent to the heart on a multigated acquisition scan.1–8

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