[Giant aneurysm of the right coronary artery].
INTRODUCTION: Giant coronary aneurysms are rare and often confused with cardiac tumours. OBSERVATION: We report a new case of this type of aneurysm occurring on the right coronary artery revealed by a cardiac congestion. COMMENTS: These aneurysms can be due to inflammatory diseases or dysplasia. But in these pseudotumoral forms, atherosclerosis is the main aetiology. The diagnosis and treatment require surgery and histological examination.