Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Redemonstrated is a right internal jugular central venous line , with the tip terminating in the proximal right atrium . There is no focal consolidation , pleural effusion , or pneumothorax . The heart is moderately enlarged . Prominent hilar opacity is stable likely reflecting engorged hilar vessels , although lymphadenopathy ca n't be entirely excluded . There is mild perihilar and interstitial edema , not significantly changed from ___ . Calcifications are noted involving the aortic arch .
    OUTPUT:
    
Moderate cardiomegaly and mild interstitial and perihilar edema .