title: Roentgenogram of the month. Sudden onset of chest pain in a middle-aged man.
mesh_terms: D005598:Fractures, Spontaneous / Q000000981:diagnostic imaging*; D006801:Humans; D007952:Leukemia, Plasma Cell / Q000150:complications; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000209:etiology*; D013902:Radiography, Thoracic; D013249:Sternum / Q000000981:diagnostic imaging*; D013909:Thorax