Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta is mildly tortuous but unchanged . The mediastinal and hilar contours are otherwise unremarkable . Apart from subsegmental atelectasis in the lingula , lungs appear clear without focal consolidation . No pleural effusion or pneumothorax is present . Pulmonary vasculature is normal . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .