title: Solitary mass in the lungs of coal miners.
mesh_terms: D000874:Anthracosilicosis / Q000000981:diagnostic imaging; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging; D003032:Coal Mining; D003937:Diagnosis, Differential; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D011009:Pneumoconiosis / Q000000981:diagnostic imaging*; D011859:Radiography; D012829:Silicosis / Q000000981:diagnostic imaging; D014481:United States