Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Comparison is made to ___ . The lung volumes are low . Allowing for this , the heart is normal in size . The mediastinal contours are stable . There is plate - like atelectasis at the right and left lung base . There is no consolidation .
    OUTPUT:
    
Mild bibasilar atelectasis unchanged from ___ .