Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Linear opacities identified at the lung bases suggestive of atelectasis versus scarring . There is no effusion or confluent consolidation . The cardiomediastinal silhouette is within normal limits . No acute osseous abnormalities detected .
    OUTPUT:
    
No acute cardiopulmonary process .