Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated and hyperlucent particularly at the upper lungs compatible with known emphysema . As on the study of ___ there is increased opacity at the left costophrenic sulcus and now worsening opacity at the right costophrenic sulcus . Heart size is normal . The mediastinal and hilar contours are normal . The aortic arch is calcified . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Bibasilar opacities , particularly at the left base , are worrisome for pneumonia . 2 . Emphysema .