Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP upright portable view of the chest was obtained . The cardiac silhouette remains mildly enlarged . Mediastinal contours are stable , as are hilar contours . No focal consolidation , pleural effusion or evidence of pneumothorax is seen . There is no overt pulmonary edema . Costochondral calcifications are seen .
    OUTPUT:
    
Persistent mild enlargement of the cardiac silhouette . No overt pulmonary edema .