Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen are biapical peripheral areas of scarring and fibrosis , otherwise unchanged compared to the prior exam . The lungs are well expanded and otherwise clear . There is no evidence of pleural effusions or pneumothorax . The heart size is normal . The cardiomediastinal contours are unremarkable . The visualized osseous structures are unremarkable .
    OUTPUT:
    
No acute abnormalities identified . Specifically , no evidence of pleural effusion seen on the frontal radiograph .