Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wires are again noted . Pulmonary edema persists without significant overall change . No large effusion or pneumothorax . No convincing evidence for pneumonia though subtle pneumonia would be difficult to exclude . The cardiomediastinal silhouette appears stable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Stable appearance of the chest with pulmonary edema re - demonstrated . Difficult to exclude a superimposed subtle pneumonia .