Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild enlargement of the cardiac silhouette with a left ventricular predominance is demonstrated . The thoracic aorta is tortuous . Hilar contours are normal . Pulmonary vasculature is not engorged . Apart from subsegmental atelectasis in the lung bases , the lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . No acute osseous abnormalities detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .