Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is of normal size with normal cardiomediastinal contours . Linear opacities in lung bases , left greater than right , are compatible with bronchiectasis with likely atelectasis , though pneumonia is not excluded . No evidence of pleural effusion or pneumothorax . Osseous structures are unremarkable . No radiopaque foreign body .
    OUTPUT:
    
Bibasilar linear opacities , left greater than right , compatible with bronchiectasis with likely atelectasis , although pneumonia is not excluded .