Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The cardiac silhouette is mildly enlarged . The aorta is calcified and tortuous . There are slightly low lung volumes . No new focal consolidation is seen . There is no pleural effusion or pneumothorax . No overt pulmonary edema is seen .
    OUTPUT:
    
Mild enlargement of the cardiac silhouette without overt pulmonary edema .