Fig. 8From: Stepwise diagnostic algorithm for high-attenuation pulmonary abnormalities on CTSilicosis (complicated form) in a 77-year-old man. a CT image shows a conglomerate mass, progressive massive fibrosis (PMF), in the right upper and lower lobes that crosses the major fissure. b Punctate and nodular calcifications are seen in the PMF. Mediastinal and hilar lymph nodes are also calcified (arrows)Back to article page