Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to ___ and ___ . As on prior , there are diffuse increased interstitial markings throughout the lungs which demonstrate appropriate volumes . There is no evidence of new consolidation compared to previous exam from ___ . There is no effusion . The cardiac silhouette slightly enlarged but stable . The osseous and soft tissue structures are unchanged .
    OUTPUT:
    
Diffusely increased interstitial markings throughout the lungs suggestive of chronic underlying lung disease without definite superimposed acute process .