Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are somewhat low in volume with decrease of pulmonary edema from the prior study . Tracheal stent has been removed with mild right greater than left basilar atelectasis . Cardiac silhouette and heart size are unchanged . No pleural effusions are seen .
    OUTPUT:
    
Mild bibasilar atelectasis .