Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are normal . Right subclavian vascular stent is again noted , which appears narrowed within its midportion , unchanged . Pulmonary vascularity is normal and the lungs are clear . No pleural effusion or pneumothorax is present . No acute osseous abnormalities are seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .