Comparison of anatomic and non-anatomic resections for very early-stage hepatocellular carcinoma: The importance of surgical resection margin width in non-anatomic resection.

Background: The superiority of anatomic resection (AR) over non-anatomic resection (NAR) for very early-stage hepatocellular carcinoma (HCC) has remained a topic of debate. Thus, this study aimed to compare the prognosis after AR and NAR for single HCC less than 2 cm in diameter.

Methods: Consecutive patients with single HCC of diameter less than 2 cm who underwent curative hepatectomy between 1997 and 2017 were included in this retrospective study.

Laparoscopic surgery for large left lateral liver tumors: safety and oncologic outcomes.

Background: Although laparoscopic hepatectomy has been proven to be safe and reliable, the influence of tumor size on the feasibility of laparoscopic left lateral segmentectomy (LLLS) is unclear. We retrospectively reviewed our surgical results focusing on hepatic tumor located in the left lateral segment.

Methods: From January 2003 to June 2016, patients who underwent left lateral segmentectomy were retrospectively reviewed, and data were collected on patient characteristics, peri-operative outcomes, and pathologic results.