Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . The lungs are hyperinflated . Streaky bibasilar opacities are again seen . There is also somewhat nodular opacity projecting over the left lung base as seen on priors . Superiorly , the lungs are clear and relatively hyperlucent particularly on the right . The cardiomediastinal silhouette is within normal limits . Atherosclerotic calcifications noted at the aortic arch . No acute osseous abnormalities .
    OUTPUT:
    
Streaky bibasilar opacities potentially atelectasis or scarring with underlying COPD not significantly changed . Persistent nodular left basilar opacityfor which dedicated nonurgent chest CT is suggested to further characterize .