Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The aortic arch is heavily calcified . Otherwise , the mediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . Streaky opacity in the left costophrenic sulcus suggests minor atelectasis or scarring . Otherwise , the lungs appear clear . There no pleural effusions or pneumothorax .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .