Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable frontal chest radiograph demonstrates moderate cardiomegaly and mild interstitial edema . The costophrenic angles are blunted and there is a small right pleural effusion . There is no pneumothorax . Atherosclerotic calcifications and tortuosity of aortic arch are noted .
    OUTPUT:
    
Mild pulmonary edema .