RT Journal Article SR Electronic T1 Clinicopathological Features of Surgically-resected Biliary Tract Cancer Following Chemo-radiation Therapy JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 335 OP 342 VO 36 IS 1 A1 KOBAYASHI, SHOGO A1 GOTOH, KUNIHITO A1 TAKAHASHI, HIDENORI A1 AKITA, HIROFUMI A1 MARUBASHI, SHIGERU A1 YAMADA, TERUMASA A1 TESHIMA, TERUKI A1 NISHIYAMA, KINJI A1 YANO, MASAHIKO A1 OHIGASHI, HIROAKI A1 ISHIKAWA, OSAMU A1 SAKON, MASATO YR 2016 UL http://ar.iiarjournals.org/content/36/1/335.abstract AB Aim: We retrospectively investigated surgery following chemo-radiation in patients with biliary tract cancer (BTC) treated at our Institution. Patients and Methods: Among 339 patients, 44 patients underwent chemo-radiation prior to surgery. Chemo-radiation entailed 2-3 months of standardized chemotherapy and 50-60 Gy radiation at the main tumor and regional and para-aortic lymph nodes. Results: Thirty-one BTC cases were classified as initially resectable (IR) and 13 as initially un-resectable (UR). Eighty percent of the BTCs were diagnosed as extrahepatic bile duct cancers. Gemcitabine (1,000 mg/m2) and radiation was used to treat 59% of patients. Thirty percent of patients underwent hemi-hepatectomy, and 50% underwent pancreatoduodenectomy. The R0 resection rate was 90% among IR and 54% among UR, and 3-year survival rates were 82% for IR and 17% for UR, respectively. Conclusion: This retrospective analysis suggests that surgery after chemoradiation may contribute to R0 resection rate and survival for initially resectable BTC.