CTICasesPulmonary Varix
Imaging findings
Chest radiograph shows a smooth-walled lobular bulge at the left hilum. CT angiography confirms a localized, aneurysmal dilatation of the left superior pulmonary vein immediately prior to its insertion into a dilated left atrium, without thrombus or vascular obstruction.
Key takeaways
A pulmonary varix is a rare, benign, congenital or acquired focal dilatation of a pulmonary vein. It is strongly associated with chronic left atrial hypertension (such as from mitral valve disease). It can masquerade as a hilar mass or aneurysm on radiographs, and contrast CT is diagnostic, demonstrating uniform enhancement synchronous with the left atrium.
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