Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderately enlargement of the cardiac silhouette is likely from a moderate pericardial effusion seen on the recent CT from ___ . The large heterogeneous mediastinal mass seen on recent CT is not well depicted radiographically . There is no pulmonary edema . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Enlargement of the cardiac silhouette is likely from the moderate - sized pericardial effusion seen on recent CT . 2 . Known large mediastinal mass is is not well depicted radiographically .