Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is unchanged . Moderate central pulmonary vascular congestion and pulmonary edema have slightly improved since ___ . Small bilateral pleural effusions appear stable . There is no pneumothorax .
    OUTPUT:
    
1 . Improved moderate pulmonary edema . 2 . Mild cardiomegaly . 3 . Unchanged small bilateral pleural effusions .