Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lungs are hyperinflated with coarsened reticular markings suggesting emphysema or fibrosis . There is a bandlike left perihilar opacity which could represent scarring versus an atypical infection . No large effusion is seen . There is no pneumothorax . Biapical pleural parenchymal scarring noted . The heart is not enlarged . The mediastinal contour is grossly unremarkable . Bony structures are intact .
    OUTPUT:
    
Coarsened lung markings suggesting emphysema / fibrosis . Left perihilar band like opacity may represent scarring versus atypical infection . Please correlate clinically . Followup to resolution advised .