Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated , with persistent biapical pleural thickening , right greater than left . Rounded calcified opacities in the right upper lobe are stable . There is interstitial edema , slightly progressed since the prior . The cardiomediastinal silhouette is unremarkable . Scarring or atelectasis is again noted in the left lung base . No pneumothorax or focal consolidation is seen . Cholecystectomy clips are noted in the right upper quadrant .
    OUTPUT:
    
Interstitial edema , increased compared to the prior study .