Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mitral valve and mediastinal clips are unchanged compared to prior exam . The heart size is at the upper limits of normal . The mediastinal contours are not widened . The lungs show no lobar consolidation , but diffuse perihilar airspace opacities compatible with pulmonary edema . Blunting of the left costophrenic angle as well as thickening of the right upper lateral aspect of the pleural space suggests areas of pleural effusion . There is no pneumothorax .
    OUTPUT:
    
Pulmonary edema . Bilateral pleural effusions .