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 Indian J Med Microbiol  
 

Figure 3 (A-D): A 49-year-old man working in glass manufacturing industry, with complicated silicosis and progressive massive fi brosis. Contrast-enhanced CT images in mediastinal (A, B) (C:50, W:350) and lung windows (C:-600, W: 1600) (C, D) show large, partially calcifi ed fi brotic masses in the upper lobes (arrows) and peripherally calcifi ed (eggshell) mediastinal and hilar lymph nodes (arrowheads)

Figure 3 (A-D): A 49-year-old man working in glass manufacturing industry, with complicated silicosis and progressive massive fi brosis. Contrast-enhanced CT images in mediastinal (A, B) (C:50, W:350) and lung windows (C:-600, W: 1600) (C, D) show large, partially calcifi ed fi brotic masses in the upper lobes (arrows) and peripherally calcifi ed (eggshell) mediastinal and hilar lymph nodes (arrowheads)