CTICasesAscending Aorta Intimal Tear
Imaging findings
Non-ECG-gated chest CT angiography shows a small contour abnormality and intimal tear in the ascending aorta, associated with a distinct caliber change immediately distal to it. There is soft tissue thickening encasing the pulmonary vasculature bilaterally, representing hemorrhage into the shared adventitial sheath of the aorta and pulmonary arteries.
Key takeaways
A limited intimal tear of the ascending aorta can represent a subtle form of aortic dissection or precursor. Hemorrhage from such a tear can dissect into the shared adventitial sheath of the aorta and pulmonary arteries, leading to soft tissue encasement of the pulmonary vasculature.
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