Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , pulmonary edema is mildly improved with persistence of perihilar opacities . Patient is slightly obliquely positioned . Continued enlargement of the cardiac silhouette . Unchanged appearance of small left pleural effusion and retrocardiac atelectasis . No pneumothorax .
    OUTPUT:
    
1 . Mild improvement of pulmonary edema with persistence of perihilar opacities since ___ .