Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate to severe enlargement of cardiac silhouette is unchanged . There is no pleural effusion or pneumothorax . There is no focal lung consolidation . There is mild pulmonary vascular congestion . There is no overt pulmonary edema .
    OUTPUT:
    
Moderate to severe cardiac enlargement , due to both cardiomegaly and pericardial effusion on separately dictated CT of abdomen of the same date . There is mild pulmonary vascular congestion without overt edema .