Would you recommend radiation or chemoradiation in a patient with cholangiocarcinoma s/p surgery and adjuvant treatment with single hepatic metastasis 3 years later?  

Patient with extrahepatic cholangiocarcinoma s/p Whipple in 2021 with negative margins and no positive nodes followed by adjuvant chemo with subsequent recurrence in the right hepatic lobe in 2024 now s/p Y 90 radioembolization with further disease progression of the single metastatic site now 8.3 cm in size.