Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Blunting of the left CP angle on the frontal projection only likely represents pleural thickening / scarring . Otherwise the lungs are clear . Cardiomediastinal silhouette is normal . No bony injuries .
    OUTPUT:
    
Pleural thickening at the left lung base . Otherwise normal . No pneumonia .