CTICasesGiant Pleural Plaques Simulating Horseshoe Lung
Imaging findings
Chest CT shows confluent, mass-like asbestos-related pleural plaques along the posterior chest wall. A thick plaque crossing the midline anterior to the spine mimics a posterior junction line or horseshoe lung variant, with the descending aorta passing posterior to it.
Key takeaways
Massive asbestos-related pleural plaques can become confluent and mimic pleural tumors or rare congenital lung anomalies (such as horseshoe lung) when crossing the midline.
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