Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . Mild bibasilar atelectasis is noted . There is no convincing sign of pneumonia or CHF . No large effusion is seen . The cardiomediastinal silhouette is normal . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Mild bibasilar atelectasis .