Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is mildly enlarged with a left ventricular predominance . The aorta is tortuous . The mediastinal and hilar contours are otherwise unchanged . Pulmonary vasculature is normal . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . No subdiaphragmatic free air is present . There is no acute osseous abnormality .
    OUTPUT:
    
No acute cardiopulmonary abnormality .