Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . The aorta remains mildly tortuous . Hilar contours are normal . The pulmonary vascularity is normal . Lungs are clear . Scarring within the lung apices is re - demonstrated . No pleural effusion or pneumothorax is identified . Mild degenerative changes are seen within the mid and lower thoracic spine . No acute osseous abnormalities are present .
    OUTPUT:
    
No acute cardiopulmonary abnormality .