Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Position of endotracheal tube and right IJ central venous catheter is unchanged . The sternotomy wires , surgical clips , and NG tube are noted . Cardiomediastinal silhouette is unchanged . Lungs are well expanded and clear . A small left pleural effusion is unchanged . No pneumothorax .
    OUTPUT:
    
No radiographic evidence of acute pneumonia . Stable mild pulmonary edema .