Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased interstitial markings are seen throughout the lungs with particular subpleural distribution . There may have been interval progression of disease at the right lung base although superimposed infection would be difficult to exclude . Elsewhere , there has been no significant interval change since prior chest x-ray . Similar appearance of the hila with possible underlying adenopathy as seen on prior chest CT . Surgical clips project over the left axilla .
    OUTPUT:
    
Chronic interstitial disease in the lungs as seen on prior chest CT . Opacity at the right lung base appears to have progressed which could be progression of lung disease although superimposed infection would be difficult to exclude .