Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are within normal limits . The pulmonary vasculature is not engorged . Minimal patchy bibasilar airspace opacities likely reflect areas of atelectasis . No focal consolidation , pleural effusion or pneumothorax is clearly identified . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .