Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral interstitial and airspace opacitification , predominantly basal has worsened substantially since ___ . Moderate enlargement of the cardiac silhouette and hilar vasculature are chronic . Small bilateral pleural effusions are presumed .
    OUTPUT:
    
Recurrent , moderately severe , pulmonary edema , worsened since ___ . Bibasilar opacification , likely edema and atelectasis .