“…202 In another retrospective analysis of patients with extrahepatic cholangiocarcinoma, the addition of maintenance chemotherapy after adjuvant chemoradiation was found to have a survival benefit (i.e., 3-year overall survival of 75.6% with addition of maintenance chemotherapy vs. 34.8% with no maintenance chemo-therapy; P = .001). 203 These results provide support for recommending consideration of fluoropyrimidine chemoradiation followed by additional fluoropyrimi-dine or gemcitabine chemotherapy for patients with extrahepatic cholangiocarcinoma with either positive margins or positive regional lymph nodes (see page 365).…”