Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate pulmonary edema appears mildly improved in the right upper lung . Severe cardiomegaly and widening of the mediastinal contours are unchanged . Small bilateral pleural effusions and moderate bibasilar atelectasis persist . No pneumothorax . Median sternotomy wires are intact and aligned .
    OUTPUT:
    
1 . Moderate pulmonary edema appears mildly improved in the right upper lung .