Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increase in pulmonary edema is seen bilaterally when compared to previous chest radiograph . New opacity in the left mid-lung is seen , and no pleural effusion is seen . Right central venous line is in appropriate position in lower SVC .
    OUTPUT:
    
Increase in pulmonary edema . New left mid-lung opacity may be increasing edema or new developing pneumonia .