Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lung volumes are low . Linear opacities at the bilateral lung bases are likely atelectasis . There is no pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact .
    OUTPUT:
    
Bibasilar atelectasis in this setting of low lung volumes .