Journal
CANCER
Volume 103, Issue 6, Pages 1210-1216Publisher
WILEY
DOI: 10.1002/cncr.20906
Keywords
cholangiocarcinoma; bile duct neoplasms; ductal resection margin status; surgery; prognosis; multivariate analysis
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BACKGROUND. The current study was performed to clarify whether the presence of residual carcinoma in situ at ductal resection margins differs prognostically from residual invasive ductal lesions in patients undergoing surgical resection for extrahepatic cholangiocarcinorna. METHODS. A retrospective analysis of 84 patients with extrahepatic cholangiocarcinoma who under-went surgical resection was conducted. The ductal resection margin status was classified as negative (n = 64 patients), positive with carcinoma in situ (n = 11 patients), or positive with invasive carcinoma (n = 9 patients). rhe median follow-up period was 105 months. RESULTS. Ductal margin status was found to be a strong independent prognostic factor by both univariate (P = 0.0002) and multivariate (P = 0.0039) analyses. The outcome after surgical resection was comparable between patients with negative ductal margins (median survival time of 45 months; cumulative 10-year survival rate of 40%) and those with positive ductal margins with carcinoma in situ (median survival time of 99 months; cumulative 10-year survival rate of 23%; P = 0.4742). In patients with positive ductal margins, the outcome was found to be significantly better in patients with residual carcinoma in situ than in those with residual invasive carcinoma (median survival time of 21 months; cumulative 5-year survival rate of 0%; P = 0.0003). Of I I patients with residual carcinoma in situ, 4 died of tumor recurrence and the initial site of the disease recurrence was local. M 9 patients with residual invasive carcinoma died of disease recurrence (local recurrence with or without distant metastases) within 40 months after surgical resection. CONCLUSIONS. After surgical resection for extrahepatic cholangiocarcinorna, invasive carcinoma at ductal resection margins appears to have a strong adverse effect on patient survival, whereas residual carcinoma in situ does not. Cancer 2005;103: 1210-6. (C) 2005 American Cancer Society.
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