Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Subtle opacity projecting over the right lung base is concerning for a right lower lobe pneumonia . Lungs are otherwise clear . No effusion or pneumothorax . Cardiomediastinal silhouette appears unchanged . Clips the right upper quadrant noted . Bony structures are intact .
    OUTPUT:
    
Vague opacity at the right lung base is concerning for right lower lobe pneumonia .