Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is persistent enlargement of the cardiomediastinal silhouette . Bilateral perihilar opacities are most consistent with pulmonary edema and a left pleural effusion persists . There is also mild blunting of the right costophrenic angle which may in part be due to overlying soft tissue , but trace right pleural effusion is not excluded . No evidence of pneumothorax is seen . The osseous structures are not well evaluated .
    OUTPUT:
    
Pulmonary edema and left pleural effusion . Persistent enlargement of the cardiomediastinal silhouette .