Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Even allowing for differences in imaging technique , there is increased airspace opacity in the left mid lung concerning for continuing are progressive pneumonia . Multiple additional pulmonary nodules are better evaluated on the prior CT chest . The trachea is central . The cardiomediastinal contour is normal . The heart is not enlarged . No pleural effusion seen . Metallic densities seen within the right lobe of the liver appear to be embolization coils .
    OUTPUT:
    
Increased opacity in the left mid lung appears more extensive than on the prior CT chest concerning for ongoing or progressive pneumonia .