CTICasesUnicuspid Aortic Valve
Imaging findings
Cardiac CT in a 42-year-old male with an ascending aortic aneurysm demonstrates a heavily calcified and thickened aortic valve. Dynamic reconstructions demonstrate a unicuspid aortic valve characterized by a single commissure and a slit-like opening.
Key takeaways
A unicuspid aortic valve is a rare congenital valvular anomaly that typically presents in young adults with severe aortic stenosis. Unlike bicuspid valves (which have two cusps and commissures), unicuspid valves have a single commissure and form a teardrop-shaped or keyhole-shaped opening. They calcify prematurely and are strongly associated with ascending aortic dilatation (aortopathy).
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