Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged with a left ventricular predominance . The aorta is unfolded . There may be a small hiatal hernia . Mediastinal and hilar contours are otherwise unremarkable . Hyperinflation of the lungs with flattening of the diaphragms may suggest underlying COPD . No focal consolidation , pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .