Thrombosed left circumflex artery aneurysm presenting with myocardial infarction

Area of Science:

• Cardiology
• Vascular Medicine
• Radiology

Background:

• Coronary artery aneurysms (CAAs) are uncommon, affecting 1.1%-4.9% of patients undergoing coronary angiography.
• CAAs can lead to severe complications like thrombosis, rupture, and compressive symptoms.

Observation:

• A rare case of a thrombosed left circumflex artery aneurysm presenting with myocardial infarction is described.
• The aneurysm was not clearly visualized by coronary angiography.

Findings:

• Coronary computed tomography angiography (CCTA) provided a definitive diagnosis of the thrombosed aneurysm.
• The patient did not undergo surgery due to complete thrombosis of the aneurysm.

Implications:

• This case underscores the utility of CCTA in diagnosing complex coronary artery aneurysms.
• Understanding CAA presentation is crucial for timely diagnosis and management, even in rare locations.