The meaning of gross tumor type in the aspects of cytokeratin 19 expression and resection margin in patients with hepatocellular carcinoma
Background: There is no consensus on the safe resection margin in patients with hepatocellular carcinoma. Surgeons decide the extent of resection according to residual liver function and tumor location. We investigated the influence of resection margin on early recurrence with respect to gross tumor...
Saved in:
Published in | Journal of gastroenterology and hepatology Vol. 31; no. 1; pp. 206 - 212 |
---|---|
Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Australia
Blackwell Publishing Ltd
01.01.2016
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Background:
There is no consensus on the safe resection margin in patients with hepatocellular carcinoma. Surgeons decide the extent of resection according to residual liver function and tumor location. We investigated the influence of resection margin on early recurrence with respect to gross tumor type and expression of cytokeratin 19 (CK19).
Methods:
We divided the patients into two groups based on the classification of The Korean Liver Cancer Study group as follows: group 1 included expanding and vaguely nodular types whereas group 2 included nodular with perinodular extension, multinodular confluent, and infiltrative types. We classified the resection margin as narrow (0.1–0.9 cm) or wide (greater than 1 cm). We compared clinicopathological features and CK19 positivity between the groups.
Results:
Group 2 had a higher prevalence of gross portal vein invasion, microscopic portal vein invasion, microvessel invasion, satellite nodules, intrahepatic metastasis, multicentric occurrence, and positivity for CK19. Group 1 showed no difference in recurrence according to the resection margin; however, group 2 showed a higher recurrence rate in patients with a narrow resection margin compared with those with a wide resection margin (P = 0.047). Patients in group 2 with CK19 positivity showed a higher prevalence of microvessel invasion than those without CK19 (P = 0.026).
Conclusions:
Although our study has the limitation of a small number of cases, the data suggest that patients with hepatocellular carcinoma of expanding and vaguely nodular gross types may safely undergo surgical resection with a narrow resection margin and a low risk of early recurrence. |
---|---|
Bibliography: | Basic Science Research Program ArticleID:JGH13063 ark:/67375/WNG-2PXNWVM4-V National Research Foundation of Korea istex:E787A1A65E4F52808E54D69A4B4E05D0F20661AF ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0815-9319 1440-1746 |
DOI: | 10.1111/jgh.13063 |