CTICasesRetrograde Stanford Type A Aortic Dissection
Imaging findings
CT angiography shows an aortic dissection and intramural hematoma (IMH) starting distal to the left subclavian artery and extending retrograde into the aortic arch and distal ascending aorta, with displaced intimal calcification visible on non-contrast CT.
Key takeaways
An aortic dissection starting in the descending aorta that propagates retrogradely into the ascending aorta is classified as a Stanford Type A dissection. Ascending aortic involvement carries a high risk of life-threatening complications (e.g., cardiac tamponade or coronary malperfusion) and typically requires surgical intervention.
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