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Figure 3c. CT scans and autopsy findings in a 61-year-old man with silicosis (former tunnel worker). (a, b) Transverse CT scans obtained with 10-mm collimation. (a) Lung window scan shows rounded masses in both upper lobes (
). The mass in the left lobe is attached to the pleura, and the mass in the right lobe is not. There are multiple silicotic nodules around the masses. (b) Mediastinal window scan shows thickened pleura (arrows) between the left mass and chest wall, as well as proliferation of the subpleural fat. Note the many eggshell calcifications in the mediastinal lymphadenopathy. (c) Gross lung specimen from a coronal section shows diffuse pleural thickening and invagination (arrow) into PMF on the left side. Because the PMF is attached to the pleura, invagination was not identified as a thick band on the CT scans.
