Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Central venous catheter from an inferior approach terminates in the right atrium and courses through an IVC stent in the upper abdomen . Cardiac silhouette size is normal . Mediastinal and hilar contours are unchanged with a prominent azygos contour . Pulmonary vasculature is not engorged . Lungs are clear . No pleural effusion or pneumothorax is present . No acute osseous abnormalities seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .