Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate intact median sternotomy wires and vascular clips in the mediastinum , unchanged since the prior study . The cardiomediastinal silhouette is unremarkable . The lungs are well expanded and clear . There is no pleural effusion , pneumothorax , or focal consolidation . Peribronchial cuffing is slightly more prominent compared to prior studies , compatible with mild pulmonary edema .
    OUTPUT:
    
Mild pulmonary edema . No evidence of pneumonia .