Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Linear bibasilar opacities most likely represent atelectasis . There is no pleural effusion or pneumothorax . The lungs are hyperinflated , suggestive of COPD . The heart size is normal . The aortic knob is calcified . There is a cardiac pacer with leads ending in the right ventricle and right atrium .
    OUTPUT:
    
Hyperinflated lungs are suggestive of COPD . Linear opacities in the right greater than the lower lobe represent atelectasis .