Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The lungs are hyperinflated , with flattening of the diaphragm , suggesting chronic obstructive pulmonary disease . There is minimal right mid lung scarring . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The cardiac silhouette is mildly enlarged . The aorta is calcified and tortuous .
    OUTPUT:
    
Mild enlargement of the cardiac silhouette without overt pulmonary edema .