Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are small bilateral pleural effusions . No pneumothorax is seen . No definite focal consolidation is seen . The patient is status post median sternotomy . The cardiac silhouette is top normal . The aorta is calcified . Some degenerative changes are seen along the spine .
    OUTPUT:
    
Small pleural effusions . No overt pulmonary edema .