Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are stable . Interval improved aeration at the lung bases with near resolution of a left retrocardiac opacity . Small left pleural effusion has nearly resolved . Post vertebroplasty changes are again demonstrated in the spine .
    OUTPUT:
    
Near resolution of left lower lobe opacity and small pleural effusion . No new findings to suggest recurrent pneumonia or congestive heart failure