Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP chest radiograph . Median sternotomy wires are intact . Lung volumes are low with pulmonary vascular engorgement and mild interstitial edema are stable . However , atelectasis in the right lung base is slightly worse . Pleural effusions are small . Moderate cardiomegaly is unchanged . There is no pneumothorax .
    OUTPUT:
    
Stable mild interstitial pulmonary edema .