Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear opacities in the lung apices , right greater than left , correspond with areas of scarring from probable prior radiation , findings better characterized on prior CT . No confluent consolidation is identified . There is no pneumothorax . Small bilateral pleural effusions are also unchanged from prior . Prominence of the interstitial markings is equivocal for mild interstitial edema . Cardiomediastinal and hilar contours appear within normal limits .
    OUTPUT:
    
1 . Biapical opacities consistent with scarring from probable prior radiation . 2 . Unchanged small bilateral pleural effusions . 3 . Equivocal mild interstitial edema .