A Huge Solitary Aneurysm of the Right Coronary Artery Successfully Treated by Surgery—A Case Report

Abstract

The case of a symptomatic fifty-four-year-old woman with a huge, solitary aneurysm of the right coronary artery is presented. A coronary angiogram did not visualize the aneurysm because of tightly packed thrombi in it, but it was definitely diagnosed intraoperatively after the mass was opened. Excision of the aneusymal wall, removal of thrombi, closure of coronary ostium, and plication of the aneurysmal wall were performed without revascularization. Histologic ex aminations demonstrated cystic medial necrosis with deposition of acid- mucopolysaccharides, suggesting that pathogenesis might be a dissecting aneurysm.