Radiotherapy Is Associated With Improved Survival in Adjuvant and Palliative Treatment of Extrahepatic Cholangiocarcinomas

These results suggest that palliative RT prolongs survival in patients with EHC. The benefit associated with surgery and RT was significant on univariate analysis but not after controlling for potential confounders using the propensity score. Future studies should evaluate the addition of chemotherapy and biologic agents for the treatment of EHC.