Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a left internal jugular central venous catheter , terminating in the proximal to mid SVC without evidence of pneumothorax . The cardiac silhouette is mildly enlarged , likely exaggerated by AP technique . There is minimal left apical pleural thickening / calcification . There is minor left basilar atelectasis / scarring . There is a tubular structure projecting over the lateral left upper abdomen , unclear whether this is external or internal to the patient .
    OUTPUT:
    
Interval placement of left internal jugular central venous catheter terminating in the proximal to mid SVC without evidence of pneumothorax .