CTICasesPersistent Levoatrial Cardinal Vein
Imaging findings
A vertical vessel adjacent to the aortic arch that communicates with a left pulmonary vein branch and the left atrium. It is associated with a small left-to-right shunt.
Key takeaways
This is a rare variant of anomalous venous return that resides within the mediastinum. Awareness of this vessel is crucial for electrophysiologists planning atrial fibrillation ablations to avoid re-entry rhythms.
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