Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ . As on prior , there are increased interstitial opacities throughout the lungs bilaterally . These appear to have progressed since the previous exam even given differences in technique . There is no significant volume loss in the lungs , nor confluent consolidation . There is no effusion . Cardiac silhouette is enlarged , slightly more so than when compared to prior . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
1 . Increased interstitial markings in the lungs bilaterally which could represent patient 's known chronic underlying lung disease with a component of interstitial edema not excluded . No confluent consolidation . 2 . Mild cardiomegaly , which has enlarged since prior exam .