We report the unusual case of a 59-year-old patient who presented with ST elevation myocardial infarction associated with a left main coronary artery aneurysm. The patient was managed without intervention due to late presentation. At latter follow up, the patient did not agree with surgical intervention and remained asymptomatic on medical therapy after 2 years of follow up. Although no obvious cause for the aneurysm was found, a previous thoracic trauma was the most probable etiological cause.
Keywords: Coronary aneurysm; Coronary disease; Thoracic trauma.