Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild enlargement of the cardiac silhouette is present . The mediastinal and hilar contours are unremarkable except for minimal atherosclerotic calcifications at the aortic knob . No pulmonary edema , focal consolidation , pleural effusion or pneumothorax is present . There mild degenerative changes seen in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .