Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diffuse extensive interstitial opacities bilaterally representing severe pulmonary edema . The cardiac silhouette is top - normal in size . The mediastinal contours are not well evaluated due to background of pulmonary edema . Small bilateral pleural effusions .
    OUTPUT:
    
New , severe pulmonary edema . Small bilateral pleural effusions .