Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Very subtle linear opacity in the right lower lung may reflect a very early pneumonia . Elsewhere lungs are clear . No large effusion or pneumothorax . Cardiomediastinal silhouette is normal . Bony structures are intact .
    OUTPUT:
    
Subtle linear opacity in the right lower lung could represent a very early pneumonia in a correct clinical setting .