CTICasesCatheter-induced pulmonary artery pseudoaneurysm
Imaging findings
Chest radiograph and CT in a heart transplant recipient show a round, contrast-filled lesion in the right lower lobe that communicates directly with a pulmonary artery branch, consistent with a pulmonary artery pseudoaneurysm secondary to prior pulmonary artery catheter placement.
Key takeaways
Pulmonary artery pseudoaneurysms are a rare, high-mortality complication of pulmonary artery (Swan-Ganz) catheterization. They typically arise from transient distal migration or balloon overinflation, and can present as persistent hemoptysis.
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