CTICasesPulmonary Sling
Imaging findings
A rounded density behind the trachea and below the aortic arch on lateral chest X-ray. CT imaging confirmed the left pulmonary artery wraps behind the trachea rather than to the left (pulmonary sling morphology).
Key takeaways
Always consider vascular rings or slings when identifying abnormal densities posterior to the trachea on a lateral chest radiograph.
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