Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are provided . Subtle opacity is noted at the left lung base which could represent pneumonia in the correct clinical setting . Given the associated volume loss , a component of atelectasis is likely present . Cardiomediastinal silhouette is normal . No effusion or pneumothorax is seen . No free air below the right hemidiaphragm .
    OUTPUT:
    
Subtle opacity in the left lower lung is concerning for an early pneumonia with probable component of atelectasis .