Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is borderline enlarged . The mediastinal and hilar contours are normal . Pulmonary vasculature is normal . No focal consolidation , pleural effusion or pneumothorax is seen . There is minimal atelectasis in the lung bases . No acute osseous abnormality is visualized .
    OUTPUT:
    
Minimal bibasilar atelectasis . Otherwise , no acute cardiopulmonary abnormality .