Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . No prior . Linear opacities at the lung bases are suggestive of subsegmental atelectasis . Costophrenic angles are grossly clear . Cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Bibasilar atelectasis without definite consolidation or other acute cardiopulmonary process .