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Comparative Study
Journal Article
Immunohistochemical Comparison of Malignancy Between Radial Invasion and Mucosal Extension in Hilar Cholangiocarcinoma.
Anticancer Research 2017 October
AIM: To compare the cells of mucosal extension (ME) and radial invasion (RI) in hilar cholangiocarcinoma (HCCA) for optimal resection.
MATERIALS AND METHODS: Forty-six patients underwent surgery for HCCA between 1992 and 2004. Immunohistochemical expressions of p53, Ki-67, matrix metalloproteinase-7 (MMP7), mucin 1 (MUC1), and E-cadherin were assessed at five different sites of the tumour and compared between the recurrence and non-recurrence groups.
RESULTS: Expression of E-cadherin was significantly lower in RI cells than in ME cells, and that of MMP7 and MUC1 was significantly higher in RI cells than in ME cells. Ki-67 expression was higher in ME cells than in RI cells. During the 11-year follow-up, recurrence in patients with R0 resection was associated with significantly lower E-cadherin, higher MMP7, and higher Ki-67 expression.
CONCLUSION: Removal of as many RI cells as possible should be a priority in resection of HCCA, followed by removal of ME cells. E-Cadherin appears to be associated with recurrence of HCCA.
MATERIALS AND METHODS: Forty-six patients underwent surgery for HCCA between 1992 and 2004. Immunohistochemical expressions of p53, Ki-67, matrix metalloproteinase-7 (MMP7), mucin 1 (MUC1), and E-cadherin were assessed at five different sites of the tumour and compared between the recurrence and non-recurrence groups.
RESULTS: Expression of E-cadherin was significantly lower in RI cells than in ME cells, and that of MMP7 and MUC1 was significantly higher in RI cells than in ME cells. Ki-67 expression was higher in ME cells than in RI cells. During the 11-year follow-up, recurrence in patients with R0 resection was associated with significantly lower E-cadherin, higher MMP7, and higher Ki-67 expression.
CONCLUSION: Removal of as many RI cells as possible should be a priority in resection of HCCA, followed by removal of ME cells. E-Cadherin appears to be associated with recurrence of HCCA.
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