Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The inspiratory lung volumes are appropriate . The lungs are clear without focal consolidation , pleural effusion or pneumothorax . The pulmonary vasculature is not engorged . The cardiac silhouette is mildly enlarged , which is unchanged from ___ . Prominence of the right supracardiac mediastinal contour is likely due to enlargement of the ascending aorta , which is also stable . The hilar contours are within normal limits . No acute osseous abnormality is detected .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Stable mild cardiomegaly and enlargement of the ascending aorta , unchanged from ___ .