Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . The lung volumes are low . There are small bilateral pleural effusions , which are best depicted on the lateral view . A band - like opacity in the right mid lung suggests minor atelectasis or scarring . Elsewhere , the lungs appear clear .
    OUTPUT:
    
Small bilateral pleural effusions ; these appear decreased , however , since the most recent prior examination .