Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior chest radiograph performed a few hours prior , there has been interval development of bilateral perihilar opacities and small bilateral pleural effusions . There is bibasilar atelectasis . The aortic knob is calcified . The cardiac silhouette is stable . The colon is seen beneath the right hemidiaphragm . Chain sutures project over the right upper lung . Known right hilar mass and hilar lymphadenopathy
    OUTPUT:
    
No pneumothorax . Short interval worsening of bilateral airspace opacities with perihilar distribution and small bilateral pleural effusions consistent with worsening pulmonary edema , now moderate in severity .