Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is mildly enlarged . Mediastinal contours are unremarkable . Hilar contours are stable . No focal consolidation is seen . No pleural effusion or pneumothorax . Multiple surgical clips are seen overlying the left hemi thorax .
    OUTPUT:
    
Mild enlargement of the cardiac silhouette without pulmonary edema . The cardiac silhouette is larger in size than on the prior study from ___ . No focal consolidation .