CTICasesPulmonary Vein Stump Thrombus post-Lobectomy
Imaging findings
CT chest shows a low-attenuation filling defect (thrombus) in the left superior pulmonary vein stump following a left upper lobectomy. The thrombus is contiguous with the left atrium.
Key takeaways
Following lobectomy, the ligated pulmonary vein stump remains as a blind pouch. Because of stagnant, turbulent blood flow, these stumps are prone to in-situ thrombosis, especially in patients with atrial fibrillation. This is a recognized source of systemic thromboembolism (causing stroke or renal/splenic infarcts) and requires anticoagulation.
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