Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates complete opacification of the left hemithorax consistent with substantial increase in volume of left - sided pleural effusion as compared to the prior study dated ___ . Stable - appearing interstitial abnormality in the right lung which may represent pulmonary edema versus dissemination of tumor . Again seen is discrete metastatic mass in the right upper lobe .
    OUTPUT:
    
Complete opacification of the left hemithorax consistent with interval increase in volume of left - sided pleural effusion .