CTICasesOccupational Silicosis
Imaging findings
Chest CT of a concrete construction worker shows upper lung-predominant, coarse calcified nodular opacities, subpleural pseudo-plaques, and associated centrilobular emphysema/mosaic attenuation.
Key takeaways
Chronic exposure to silica-containing concrete dust can cause silicosis. CT findings typically include upper-lobe predominant centrilobular and subpleural nodules (which can coalesce to form pseudo-plaques) and mediastinal/hilar lymphadenopathy.
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