Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . Mediastinal and hilar contours are unremarkable . The pulmonary vascularity is not engorged . Linear opacities in both lung bases likely reflect a combination of chronic bronchiectasis , subsegmental atelectasis , and scarring . No focal consolidation , pleural effusion or pneumothorax is visualized . No acute osseous abnormalities are seen .
    OUTPUT:
    
No acute cardiopulmonary process .