Premature newborn status umbilical venous catheter placement

AXR of umbilical venous catheter in the right portal vein
Initial AXR AP (left) shows the umbilical venous catheter tip in the main portal vein and the tip of the umbilical arterial catheter at T8. Later AXR AP (right) shows the umbilical venous catheter tip in the right portal vein.

The diagnosis was low malposition of the umbilical venous catheter and appropriate position of the umbilical arterial catheter.