Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Total opacification of the right hemithorax compatible with prior pneumonectomy is unchanged . Interstitial opacities are consistent mild pulmonary edema new since ___ . Stable cardiomediastinal silhouette . No left pleural effusion or pneumothorax .
    OUTPUT:
    
New mild pulmonary edema on the left .