Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There is streaky right basilar opacity which may be due to atelectasis versus scarring . Less well - defined opacities at the left lung base are identified , particularly laterally . There is inferior traction of the left hilum suggestive of a component of scarring . On the lateral view , there is increased opacity in the posterior costophrenic sulcus , likely on the left with probable associated bronchiectasis . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities detected . Old healed right posterior 4th rib fracture is identified .
    OUTPUT:
    
Streaky opacities identified at the lung bases bilaterally . These may all be due to scarring and probable bronchiectasis however underlying lesion or infection is also possible . Correlation with older films would be of use to document long - term stability . Alternatively , CT scan should be considered to further characterize if no prior imaging is available .