Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Linear left basilar opacity is most suggestive of an atelectasis versus scarring . The lungs are hyperinflated but otherwise clear . The cardiomediastinal silhouette is enlarged but stable . No acute osseous abnormalities detected .
    OUTPUT:
    
No acute cardiopulmonary process .