Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is mildly enlarged but unchanged . The mediastinal and hilar contours are unremarkable . Pulmonary vascularity is normal . Linear bibasilar airspace opacities are compatible with subsegmental atelectasis . There is no focal consolidation , pleural effusion or pneumothorax . No acute osseous abnormalities are visualized .
    OUTPUT:
    
No acute cardiopulmonary process .