Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are slightly increased compared to prior . Increased interstitial opacities represent new mild pulmonary edema . A right lower lung opacification may represent pulmonary edema and a pneumonia is less likely considering similar appearance on prior exams . Moderate cardiomegaly is stable . The mediastinal contours are stable . Stable calcifications of the aortic arch . Interval decrease in moderate left pleural effusion and small right pleural effusion .
    OUTPUT:
    
New mild pulmonary edema . Slight interval decrease of bilateral pleural effusions .