Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Bibasilar atelectasis noted without convincing evidence for pneumonia or edema . No large effusion or pneumothorax . Cardiomediastinal silhouette is normal . Bony structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Bibasilar atelectasis . No pneumonia .