CTICasesMeandering Pulmonary Vein
Imaging findings
Chest radiograph demonstrates a prominent, tortuous vascular density in the right lower lung field. Contrast-enhanced chest CT shows a dilated, anomalous right pulmonary vein that takes a tortuous, meandering course through the right lung parenchyma but drains normally into the left atrium near its typical junction. The adjacent lung parenchyma is normal.
Key takeaways
A meandering pulmonary vein (anomalous meandering pulmonary vein) is a rare, benign congenital vascular variant characterized by an atypical, tortuous intraparenchymal course of a pulmonary vein that nevertheless connects normally to the left atrium (unlike Scimitar syndrome, which drains anomalously to the IVC). It is typically diagnosed incidentally and requires no treatment, but must be recognized to prevent misinterpretation as a pulmonary nodule or arteriovenous malformation.
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