CTICasesLeft Main Coronary Artery Occlusion Secondary to Aortic Root Abscess
Imaging findings
CT angiography shows an aortic root abscess compressing the left atrium in a patient with aortic valve endocarditis. Post-operative CT shows complete occlusion of the left main coronary artery, resulting in a massive myocardial infarction of the left ventricle anterolateral wall.
Key takeaways
Aortic root abscess is a severe complication of infective endocarditis. The abscess can cause mechanical compression, spasm, or direct infectious extension into the coronary ostia, particularly the left main coronary artery. This can result in acute myocardial infarction or graft dehiscence, requiring urgent surgical re-intervention.
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