Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Prominent perihilar opacities suggest severe pulmonary edema although superimposed infection is not excluded . There is blunting of the costophrenic angles of suggesting small bilateral pleural effusions . The cardiac silhouette is enlarged . The mediastinum is also prominent but is slightly eccentric by the AP technique and relatively low lung volumes . Bilateral calcified pleural and diaphragmatic plaques suggest prior asbestos exposure . The patient has background of chronic pulmonary fibrosis .
    OUTPUT:
    
Interval development of prominent perihilar opacities suggest pulmonary edema . The opacities are right - greater - than - left which may be due to asymmetric pulmonary edema although infectious process is not excluded . Small bilateral pleural effusions . Bilateral calcified pleural and diaphragmatic plaques suggest prior asbestos exposure . Enlargement of the cardiomediastinal silhouette is likely accentuated by portable , AP technique . If concern for acute aortic / mediastinal process , chest CTA would be more sensitive .