Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are increasing interstitial opacities with peripheral septal thickening , findings consistent with mild interstitial pulmonary edema . An opacity overlying the lower thoracic spine on the lateral view likely reflects a tortuous aorta . No definite confluent opacity is identified to suggest pneumonia . No pneumothorax is evident . The calcified aortic arch is unchanged from prior . Moderate - to - severe cardiomegaly , particularly right atrial enlargement , appears unchanged .
    OUTPUT:
    
1 . Increasing interstitial opacities consistent with mild pulmonary edema . 2 . Unchanged moderate cardiomegaly . 3 . Calcified tortuous aorta , unchanged from prior .