Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low leading to crowding of the bronchovascular structures . There is no lobar consolidation , pneumothorax , or pulmonary edema . Mild blunting of the costophrenic angles may represent trace pleural fluid versus atelectasis . The cardiomediastinal silhouette is within normal limits allowing for low lung volumes .
    OUTPUT:
    
Low lung volumes and bibasilar atelectasis . No lobar consolidation .