Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is stable appearance of right basal opacity . Left retrocardiac opacity has improved . Small to moderate bilateral pleural effusions are still present and appears smaller on the right . No pneumothorax is seen . Stable cardiomegaly is again seen . Median sternotomy wires are aligned and intact .
    OUTPUT:
    
Decreased right pleural effusion . Stable small to moderate left pleural effusion .