recurrent chest pain due to a huge left main aneurysm: a case report

Coronary artery aneurysms (caas) are rare, and aneurysms of the left main coronary artery are extremely rare. atherosclerosis is the main cause of caas. an 87-year-old man with atypical chest pain of 1 month’s duration presented to a hospital. physical examinations of the patient’s cardiopulmonary system and vital signs were unremarkable. electrocardiography showed a right bundle branch block and an atypical st-segment elevation in the inferior leads. coronary angiography demonstrated a huge aneurysm in the left main without any clots. additionally, there were no remarkable findings in cardiac monitoring and spiral chest computed tomography scanning. ultimately, after he received nitroglycerin, β-blockers, ca++ channel blockers, aspirin (asa), and clopidogrel (plavix), his pain was relieved.