Recently, laparoscopic hepatectomy has seen increasing as one of a minimal invasive therapy. We have performed laparoscopic surgery in 59 patients with liver tumors. In this report, we focus on a new device of microwave coagulator for laparoscopic hepatectomy. The characteristics of this device are smaller diameter (5 mm) and angle flexibility (maximum 45 degree). It can be used even in smaller working space compared with previous 10 mm device. We were able to performed laparoscopic hepatectomy for a patient with hepatocelular carcinoma and sever liver cirrhosis by using this new device safely.
