CTICasesTypical Type A Acute Aortic Dissection
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Imaging findings
CT shows a typical type A acute aortic dissection, with an intimal flap involving part of the circumference of the aorta that spirals down its length. There is a relatively small true lumen in the descending aorta, and the flap extends proximally close to the aortic root.
Key takeaways
This case, shown alongside a second, more unusual type A dissection for comparison, illustrates the typical appearance of an acute type A aortic dissection: a spiraling intimal flap with true and false lumens, most prominent in the descending aorta.
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