CTICasesComplicated Silicosis with Eggshell Calcifications
Imaging findings
Extensive distortion is observed in the upper lung zones. Calcified lymph nodes, exhibiting an eggshell pattern, are present in the neck and hilar regions, with some appearing pulled into the lung parenchyma due to severe fibrotic distortion.
Key takeaways
Complicated silicosis, particularly in coal miners, can lead to severe pulmonary fibrosis and architectural distortion. A hallmark finding is the presence of eggshell calcifications in lymph nodes, which can extend beyond the hilar region to distant sites like the neck. The extreme degree of distortion and scarring is highly suggestive of silica exposure, which is more fibrogenic than pure coal dust, although both can be mixed in coal mining environments.
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