Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal with mildly tortuous thoracic aortic arch , with atherosclerotic calcifications . Mediastinal and hilar contours are unchanged compared to prior examination . Lungs are clear . There is no pulmonary edema . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary abnormality .