Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is top normal . The aorta is tortuous . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . Left hemidiaphragm is elevated with gaseous distention of the stomach . No acute osseous abnormalities identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality .