Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild enlargement of cardiac silhouette is noted . The aorta is unfolded , and mild atherosclerotic calcifications are noted at the aortic arch . The pulmonary vascularity is normal . Apart from minimal left basilar atelectasis , the lungs are clear . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities . Clips are seen within the upper abdomen .
    OUTPUT:
    
No acute cardiopulmonary process .