Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes bilaterally with interval increase in bibasilar plate - like atelectasis , right greater than left . No pneumothorax , pleural effusion or pulmonary edema . Heart size , mediastinal contour and hila are normal . Stable healed left lateral rib fracture with callus formation . No additional bony abnormality .
    OUTPUT:
    
Interval increase in moderate bibasilar atelectasis , right greater than left . No pneumothorax .