Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable supine view of the chest . Interval placement of a left IJ central venous catheter with its tip at the level of the distal left brachiocephalic vein at the SVC confluence . Lung volumes are low . Evaluation for in pneumothorax limited given exclusion of left CP angle . No definite pneumothorax seen .
    OUTPUT:
    
Appropriately positioned left IJ central venous catheter .