Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperlucent and the retrosternal space is widened . The heart is not enlarged . The mediastinal and hilar contours are normal . There is scarring and calcification of the pleural surfaces at the lung apices . There is likely tiny right pleural effusion . There is no pulmonary edema or evidence of pneumonia .
    OUTPUT:
    
1 . Emphysema . Tiny right pleural effusion . 2 . Pleural calcification suggests prior asbestos exposure .