Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Unchanged positioning of all lines and tubes . There is mild - to - moderate interstitial pulmonary edema . The lungs are otherwise clear . There is stable enlargement of the cardiomediastinal silhouette . There is a small left pleural effusion . There is no pneumothorax .
    OUTPUT:
    
1 . Appropriate positioning of all lines and tubes . 2 . Mild to moderate pulmonary edema with a small left pleural effusion .