Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . No prior . Low lung volumes are seen . Linear opacities at the lung bases , left greater than right are most suggestive of atelectasis ; however , a component of consolidation can not be excluded . Cardiomediastinal silhouette is within normal limits . Superiorly , the lungs are clear . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Bibasilar opacities , left greater than right , potentially due to atelectasis given low lung volumes , however , component of infection can not be excluded .