Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval improved aeration bilaterally . The heart continues to be moderately enlarged but is less prominent compared to the prior exam . There continues to be bilateral lower lobe volume loss and elevation of the left hemidiaphragm and small left pleural effusion . The left subclavian line is unchanged
    OUTPUT:
    
Slight improvement in appearance of the lungs .