Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . Cardiac , mediastinal and hilar contours are normal . Except for mild bibasilar atelectasis , the lungs are clear . The . No pleural effusion or pneumothorax is present . No acute osseous abnormalities detected .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis .