Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . There is a again noted to be an area of scarring at the left anterior lung base , better assessed on a prior CT chest from ___ , accounting for the subtle opacity at this level . The lungs are otherwise clear without focal consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette is normal . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute findings in the chest .