Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . Mild unfolding is noted along the thoracic aorta . The right upper lung is relatively lucent with a paucity of bronchovascular markings , which is also true to a lesser degree of the left upper lobe , suggesting emphysema . A nipple shadow projects over the right lower lung . There is a striking moderate interstitial abnormality predominantly involving the the mid-to - lower lungs with peribronchial cuffing . Slight subpleural scarring is present at each lung apex . There is no pleural effusion or pneumothorax . Mild degenerative changes are present along the lower lumbar spine .
    OUTPUT:
    
Findings suggestive of emphysema including a widespread moderate interstitial abnormality . The appearance is concerning for pulmonary edema in the appropriate clinical setting superimposed on background abnormal lung architecture , although a more chronic interstitial abnormality could also be considered ; correlation with prior films , if available , would be helpful .