Pure laparoscopic subsegmentectomy of the liver using a puncture method for the target portal branch under percutaneous ultrasound with artificial ascites.

Purpose:It is important to minimize surgical invasiveness in the therapy of patients with hepatocellular carcinoma (HCC) and, consequently, laparoscopic hepatic resection is widely performed. However, most anatomic resections, except left lateral sectionectomy, are still difficult technically and, a