Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There are persistent streaky linear opacities at the lung bases compatible with scarring . There is also mild pleural - based scarring at the left lung base laterally . The lungs are clear of consolidation . Cardiomediastinal silhouette is normal . No acute osseous abnormalities detected .
    OUTPUT:
    
No acute cardiopulmonary process .