Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . The aorta is moderately tortuous and mildly calcified . The mediastinal and hilar contours are unchanged since ___ . The central pulmonary vessels are engorged , and there is mild interstitial edema . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
Mild cardiomegaly , pulmonary vascular congestion , and edema .