CTICasesAortic Root Abscess with Valve Dehiscence
Imaging findings
CT angiography of the aorta shows a fluid-filled cavity (abscess) surrounding the aortic root with localized contrast extravasation, associated with dehiscence of a bioprosthetic aortic valve and a retrosternal fluid collection, developing after a dental cleaning.
Key takeaways
Aortic root abscess is a life-threatening complication of infective endocarditis, especially in patients with prosthetic valves. Dental procedures can introduce transient bacteremia, seeding the valve. CT is excellent for demonstrating the perivalvular extension of infection, dehiscence, and pseudoaneurysm formation.
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