Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the immediate prior study , mild pulmonary edema has improved . Pleural effusions are small , if present at all . There is mild cardiomegaly , the aorta is tortuous . There is no focal consolidation or pneumothorax .
    OUTPUT:
    
Slight interval improvement in mild pulmonary edema .