Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and aortic valve replacement . In the interval since the prior study , there has been interval increase in bilateral pleural effusions , now moderate on the left and small to moderate on the right , underlying consolidation is not excluded . Mediastinal contours are stable . The cardiac silhouette is not accurately assessed due to the left base opacity , although is grossly stable compared to the prior study . No overt pulmonary edema is seen .
    OUTPUT:
    
Increase in size in bilateral pleural effusions , as above . No overt pulmonary edema .