Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Low lung volumes . Mild bibasilar atelectasis . No convincing signs of pneumonia . No congestion or edema . No large effusion or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Bibasilar atelectasis , otherwise unremarkable .