RT Journal Article SR Electronic T1 Impact and Prediction of Lymph Node Involvement in Patients with Intrahepatic Cholangiocarcinoma After Curative Resection JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 3763 OP 3769 VO 37 IS 7 A1 NOBORU HARADA A1 TOMOHARU YOSHIZUMI A1 YO-ICHI YAMASHITA A1 YUJI SOEJIMA A1 TORU IKEGAMI A1 NORIFUMI HARIMOTO A1 SHINJI ITOH A1 YOSHIHIKO MAEHARA YR 2017 UL http://ar.iiarjournals.org/content/37/7/3763.abstract AB Background: The aim of this study was to identify the preoperative predictors of prognosis in patients with intrahepatic cholangiocarcinoma (ICC) undergoing resection. Patients and Methods: We enrolled 90 patients with ICC who underwent surgical resection, including 59 in whom surgery was considered curative, and measured the overall survival (OS), recurrence-free survival (RFS), and other outcomes and potential prognostic factors. Results: Multivariate Cox proportional hazards analysis showed that tumor in the resection margins (R>0) independently predicted long-term OS in the whole cohort. In the curatively-resected group (R0), lymph node involvement was the only independent predictor of long-term OS. Multiple tumors, perihilar tumor location and serum carcinoembryonic antigen (CEA) concentration >2.2 ng/ml were independent predictors of lymph node involvement before curative resection. Conclusion: Patients with ICC with multiple tumors, perihilar tumors and serum CEA concentration >2.2 ng/ml in association with lymph node involvement may need additional preoperative chemotherapy.