Chemoport is widely used in pediatric surgery field. But various complications can occur during the process of insertion or removal of chemoport. Surgeons must be familiar with the treatment of these complications. We had one catheter cuts off during chemoport removal, become a catheter embolism. Interventional radiologic removal was successful. Verifying the length of removed catheter and careful observation of the catheter tip during removal procedure is important to prevent the possibility of catheter embolus. Radiologic intervention was accessible to remove the retained catheter.