Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were compared to previous exam from ___ . Since prior , there has been no significant interval change . Increased interstitial markings again suggestive of mild interstitial edema . There is no confluent consolidation . No large effusions . There is blunting of the right posterior costophrenic angle suggestive of possible trace effusion . Cardiac silhouette is significantly enlarged , similar to prior . Coronary artery calcifications are again noted . There is diffuse osteopenia limiting evaluation of osseous structures .
    OUTPUT:
    
Cardiomegaly and mild interstitial pulmonary edema , not significantly changed from yesterday 's exam .