Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The lungs remain clear of consolidation . Linear opacity at the left lung base is unchanged and most suggestive of scarring . The cardiomediastinal silhouette is normal . No acute osseous abnormalities . No free intraperitoneal air .
    OUTPUT:
    
No acute cardiopulmonary process .