Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: When compared to the scout of CT thorax dated ___ , right apical pneumatocele and scarring are unchanged in appearance . No acute focal consolidation , interstitial edema pleural effusions or pneumothorax . The cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Stable scarring and pneumatocele in the right apex .