Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated compatible with known emphysema . Nodular opacities overlying the anterior 2nd ribs bilaterally may represent sclerotic foci in the ribs or lung nodules . No other focal opacities are seen . Cardiomediastinal and hilar contours are unremarkable . Atherosclerotic calcifications of the aortic knob are present . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Two new , small rib or lung nodules , probably unrelated to acute complaints . 2 . Emphysema .