CTICasesType A Aortic Dissection with False Lumen Thrombus
Imaging findings
Chest CT angiography demonstrates a severe Type A aortic dissection with an extremely narrow true lumen and a massive, completely thrombosed false lumen at the aortic root. The left main and right coronary arteries are shown arising from the small true lumen.
Key takeaways
In acute Type A aortic dissections, thrombus formation within the false lumen is common, but massive thrombosis at the aortic root is an unusual and critical finding. This scenario can severely compress the true lumen and compromise coronary artery perfusion, presenting a surgical emergency.
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