Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are diffuse bilateral interstitial opacities , more prominent in the perihilar regions . No focal parenchymal opacities present . There is no pneumothorax . Small layering pleural effusions may be present . The heart size appears mildly enlarged .
    OUTPUT:
    
Findings compatible with mild to moderate pulmonary edema and probable small pleural effusions .