CTICasesGiant Pulmonary Artery Aneurysm with Thromboembolic Disease
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Imaging findings
A healthy 50s woman presented with a very large right pulmonary artery aneurysm, rounded perihilar mass, and scattered pulmonary emboli consistent with both chronic and acute thromboembolic disease. No other aneurysms or history of IV drug use, infection, instrumentation, or trauma were present.
Key takeaways
The etiology of such a large pulmonary artery aneurysm with associated acute and chronic emboli in a healthy patient without risk factors (drug use, infection, trauma, instrumentation) is unclear, raising possibilities like an uncommon manifestation of chronic thromboembolic disease or vasculitis.
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