Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperexpanded . There is new opacity at the left base in the retrocardiac region projecting over the spine on the lateral radiograph . Mild bibasilar atelectasis or scarring . Scoliosis limits evaluation of heart size . There is no pleural effusion or pneumothorax . The thoracic aorta is calcified and tortuous as before . Again there is convex rightward curvature of the thoracic spine .
    OUTPUT:
    
1 . New opacity at the left base projecting over the spine on lateral radiograph worrisome for pneumonia . Recommend repeat radiographs after treatment . 2 . Severe hyperexpansion compatible with COPD .