Globe in the Heart: A Rare Case Report of Giant Coronary Artery Aneurysm

Abstract

A 22-year-old male having cardiomegaly with prominent right atrium (RA) enlargement in his chest X-ray underwent echocardiography which revealed an anterior mediastinal cystic lesion. Contrast-enhanced computed tomography of the thorax showed saccular contrast filling outpouching from ostia of the right coronary artery (RCA) of size 5.9 × 6.4 cm in anterior atrioventricular groove compressing RA and right ventricle along the RCA course. The left main coronary artery also appeared to be dilated with a diameter of 1.1 cm proximally. The patient denied any prior angina, palpitation, and dyspnea on exertion. This case is reported for its rarity and the dilemma involving its appropriate medical and surgical management.