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Updated: Aug 19, 2026

Application of the En Bloc Concept Combined with Anatomic Resection in Laparoscopic Hepatectomy
Published on: March 10, 2023
Hepatic resection with and without surgical margins for hepatocellular carcinoma in patients with impaired liver
T Ochiai1, T Takayama, K Inoue
1Department of Surgery, National Cancer Center Hospital, Tokyo, Japan.
Background/Aims:
The significance of a surgical margin for hepatic resection of hepatocellular carcinoma (HCC) in patients with impaired liver function was evaluated.
Methodology:
Sixty-eight patients, each with a solitary HCC, who had not received any prior treatments were divided into 2 groups, according to surgical margin: Group A included 25 patients who underwent resection with no margin (although the tumor was not exposed) and Group B included 43 patients with a sufficient surgical margin (mean distance: 9 mm). There were no significant differences in clinicopathologic variables between the 2 groups. The rate of stump recurrence, survival and recurrence-free survival were analyzed.
Results:
Among the 38 patients who had cancer recurrence after a median follow-up of 58 months, 9 (Group A, n=4; Group B, n=5) (24%) had recurrent lesions at the stump. The surgical margin was not a significant factor related to survival or recurrence, irrespective of cirrhosis, capsule formation, cancer spread, or tumor size.
Conclusions:
Our results indicated that the HCC-free surgical margin is unlikely to be related to the survival of patients with impaired liver function unless the tumor is exposed on the raw liver surface.
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