Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Semi-erect portable chest radiograph demonstrates several median sternotomy wires which appear intact . Surgical clips project over the left mediastinal border . An aortic valve prosthesis is noted . Progressed relative to prior examination are bilateral patchy opacities predominantly in a perihilar and lower lobe distribution most consistent with moderate to severe pulmonary edema . Blunting of bilateral costophrenic angles likely reflects small pleural effusions . There is no pneumothorax .
    OUTPUT:
    
Moderate to severe pulmonary edema progressed relative to prior examination . Probable small bilateral pleural effusions .