Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . The aorta is mildly tortuous but unchanged . Mediastinal hilar contours are similar . Focal left - sided tracheal deviation within the neck likely is due to a large right thyroid nodule , unchanged . Lungs are clear . No pleural effusion or pneumothorax is seen . Pulmonary vasculature is not engorged . No acute osseous abnormality is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality .