Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The hilar and mediastinal contours are within normal limits . There is no pneumothorax or focal consolidation . Small bilateral pleural effusions are present . There is mild bibasilar atelectasis . No free intraperitoneal air is detected .
    OUTPUT:
    
Small bilateral pleural effusions . No pneumatosis .