Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is moderate enlargement of the cardiac silhouette . The aorta remains calcified . No definite focal consolidation is seen . There is no pleural effusion or pneumothorax . Previously seen interstitial edema has decreased in the interval without overt edema seen on the current study . No large pleural effusion seen on this single frontal view . Partially imaged aortic stent graft .
    OUTPUT:
    
Persistent enlargement of the cardiac silhouette without acute cardiopulmonary process .