Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The mediastinal contours are unremarkable . Pulmonary vascularity is normal . There appears to be attenuation of the vascular markings towards the lung apices suggestive of underlying emphysema . No focal consolidation , pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Emphysema .