CTICasesBicuspid Pulmonary Valve and Pulmonary Stenosis
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Imaging findings
Chest CT shows a markedly enlarged main pulmonary artery, as well as dilated left and right pulmonary arteries. On CT, the pulmonary valve is abnormally thickened and clearly visible, with a bicuspid configuration. Echocardiography confirmed the diagnosis of a bicuspid, stenotic pulmonary valve.
Key takeaways
While the aortic valve is the most common site of bicuspid valvular disease, a bicuspid pulmonary valve can also occur and cause pulmonary stenosis. Whenever the pulmonary valve is clearly visible on CT rather than being barely visible and wisp-like, valvular pathology should be suspected. Post-stenotic dilation typically affects the main and left pulmonary arteries due to the direction of the systolic jet.
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