CTICasesPulmonary artery catheter-induced pseudoaneurysm
Imaging findings
Chest CT and pulmonary angiography show a pulmonary artery catheter extending too far distally into the medial branch of the middle lobe pulmonary artery, associated with the development of a focal pulmonary artery pseudoaneurysm and surrounding alveolar hemorrhage.
Key takeaways
Pulmonary artery catheter-induced pulmonary artery rupture or pseudoaneurysm is a rare but potentially fatal iatrogenic complication. Catheter tips should be positioned in the main, right, or left pulmonary arteries, and not advanced into distal low-caliber vessels.
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