Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . The cardiomediastinal silhouette is within normal limits . Coronary artery stents are noted . Vague opacity projecting over the mediastinum on the right just below the thoracic inlet is compatible with tortuosity of the great vessels . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .