Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Widening of the cardiomediastinal contour relates to the mediastinal lipomatosis . The lung volumes are low , with bibasal atelectasis , left greater than right . There is no pneumothorax . A right chest tube is in place .
    OUTPUT:
    
Low lung volumes , but no bibasilar atelectasis . No pneumothorax .