Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Pulmonary edema is mild but improved . There is no focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is enlarged and unchanged . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen . Left chest pacemaker device and leads are grossly unchanged in position . Sternotomy wires appear intact .
    OUTPUT:
    
Pulmonary edema is mild and improved .