Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette . No pleural effusion or pneumothorax is present . Unchanged basilar opacities are consistent with scarring . No new opacity to suggest an infectious process is seen .
    OUTPUT:
    
1 . No new opacity to suggest infection . 2 . Unchanged basilar opacities consistent with scarring .