Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The upper lungs are clear . Bibasilar atelectasis is minimal and unchanged . There is persistent bilateral pleural effusions . Cardiomegaly is unchanged . The mediastinal and hilar contours are unremarkable . Monitoring and support lines are appropriate in positioning . No pneumothorax .
    OUTPUT:
    
No significant interval change .