CTICasesStanford Type A Aortic Dissection
Imaging findings
Initial CT angiography shows a focal intimal tear in the ascending aorta and hemopericardium in a 50-year-old female with severe left ventricular hypertrophy. Repeat CT and echocardiography hours later show progression to a classic Stanford Type A (DeBakey Type I) aortic dissection.
Key takeaways
Stanford Type A aortic dissection involves the ascending aorta and represents a surgical emergency. Initial presentation can be atypical (syncope or altered mental status without chest pain). A localized tear with hemopericardium can rapidly progress to full circumferential dissection, requiring immediate surgical repair.
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