Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are provided . The lungs appear clear without focal consolidation , effusion or pneumothorax . There is mild bibasilar atelectasis . No large effusion . Cardiomediastinal silhouette appears normal . Bony structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
Mild bibasilar atelectasis . Otherwise , normal .