Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison with the study of ___ , there is little overall change . Hazy opacification of the left hemithorax is consistent with large pleural effusion seen on CT . Retrocardiac opacification is consistent with the consolidation previously noted , and there is similar increased opacification ( though much less ) at the right base .
    OUTPUT:
    
Little overall change .