title: [Diagnostic quiz. Lung shadow of uncertain origin. Silicosis].
authors: DRK-Krankenhaus Westerwald, Hachenburg.
authors: P
authors: P
authors: Stiefelhagen
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012829:Silicosis / Q000000981:diagnostic imaging*