Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . There is prominent interstitium with more focal linear opacities in the right middle lobe and at the left base which may reflect scarring , small airways disease or underlying bronchiectasis . Early pneumonia can not be excluded . Clinical correlation is advised . The cardiomediastinal silhouette is within normal limits . No pleural effusion or pneumothorax is present .
    OUTPUT:
    
Bilateral interstitial prominence with more focal linear opacities involving the RML and LLL . This raises the possibility of small airways disease . Early pneumonia can not be excluded . Clinical correlation is advised .