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Impact of longitudinal tumor location on postoperative outcomes in patients undergoing resection for gallbladder cancer: Fundus and body vs. neck and cystic duct

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AHBPSAnnals of Hepato-Biliary-Pancreatic Surgery

www.ahbps.org S175

Impact of longitudinal tumor location on

postoperative outcomes in patients undergoing resection for gallbladder cancer:

Fundus and body vs. neck and cystic duct

Sanghyun SONG, Kil Hwan KIM, Sungho JO*

Department of Surgery, Dankook University College of Medicine, Cheonan, Korea

BP-PP-4-7

Introduction: It is known that gallbladder cancer (GBC) in the neck or cystic duct (NC-GBC) has a better prognosis than GBC in the fundus or body (FB-GBC), but systematic studies on this are insufficient. We performed this study to investigate the impact of longitu- dinal tumor location on postoperative outcomes in patients undergoing resection for GBC.

Methods: A retrospective study was conducted for patients who underwent a radical resection for GBC from February 2008 to No- vember 2017 at the Dankook University Hospital. A total of 98 patients underwent surgery for GBC, of which 77 patients who under- went curative intent surgery were included in the study. They were classified into FB-GBC and NC-GBC groups according to longitu- dinal tumor location, and the postoperative outcomes were compared and analyzed.

Results: There were no significant differences in the clinicopathological characteristics, TNM stage, postoperative complications, and in-hospital mortality between two groups. However, NC-GBC significantly showed more sclerotic gross type, poorer differentiation, and more lymphatic and perineural microinvasion. The radical resection rate was statistically higher in FB-GBC group (93.1% vs.

73.7%; p = 0.036) and adjuvant 5-FU based CCRT was more carried out in NC-GBC group (19.0% vs. 57.9%; p < 0.001). The recurrence rates after surgery was statistically higher in NC-GBC group (25.9% vs. 52.6%, p = 0.047), but there were no differences in disease-free survival (DFS) and overall survival (OS).

Conclusions: Although NC-GBC showed more aggressive microscopic pathological findings and higher recurrence rate than FB- GBC, there were no differences in DFS and OS according to longitudinal tumor location of GBC.

pISSN: 2508-5778ㆍeISSN: 2508-5859

Ann Hepatobiliary Pancreat Surg 2021;25 Suppl 1:S175 https://doi.org/10.14701/ahbps.BP-PP-4-7

Corresponding Author: Sungho JO (agapejsh@dankook.ac.kr) Presenter: Sungho JO (agapejsh@dankook.ac.kr)

Copyright Ⓒ The Korean Association of Hepato-Biliary-Pancreatic Surgery

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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