Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . A vascular stent is seen in the left brachiocephalic vein . Lungs are clear and the pulmonary vasculature is normal . No pleural effusion or pneumothorax is seen . There is resorption of the right distal clavicle which may be due to prior surgery or trauma .
    OUTPUT:
    
No acute cardiopulmonary abnormality .