Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are hyperinflated with severe emphysema again noted and diffuse chronic interstitial opacities . More focal opacity within the left lower lobe periphery is compatible with the known lesion seen on the prior CT . No large pleural effusion or pneumothorax is present . Heart size is normal . Diffuse atherosclerotic calcification of aorta is noted . There are no acute osseous abnormalities .
    OUTPUT:
    
Severe emphysema with chronic interstitial abnormality . More focal opacity in the periphery of the left lung base likely reflects the known lesion seen on prior chest CT .