Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes and bibasilar atelectasis . Trace pleural effusions were better assessed on CT . The cardiac silhouette is mildly enlarged . Slight prominence of the right peritracheal mediastinum is similar and may be due to prominent vasculature . No underlying lymphadenopathy was seen on CT . No pneumothorax is seen . No overt pulmonary edema is seen .
    OUTPUT:
    
Low lung volumes , bibasilar atelectasis and trace pleural effusions . No overt pulmonary edema .