Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to previous exam from ___ . Much lower inspiratory effort is seen on the current exam . Linear opacities at the lung bases , right greater than left , may be due to atelectasis , noting that consolidation can not be completely excluded . There is no effusion . Superiorly , the lungs are clear . Cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Linear bibasilar opacities which may represent atelectasis , especially in the setting of lower lung volumes , however , component of infection can not be completely excluded . Please clinically correlate . If necessary , repeat exam with better inspiratory effort can be attempted .