Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Parenchymal scarring related to prior asbestosis exposure is relatively unchanged since ___ . Pleural plaques are again noted . Blunting of the right costophrenic angle may represent a tiny pleural effusion or chronic pleural scarring . There is no focal opacity , pulmonary edema or pneumothorax .
    OUTPUT:
    
Parenchymal scarring and pleural calcifications are unchanged . No concerning findings .