The patient was a 75 year old woman diagnosed with cholangiocarcinoma in the CBD 1-1/2 years prior. The patient had undergone multiple plastic stent placements and exchanges, and subsequent placement of an uncovered WallFlexTM Biliary RX Stent (10x60mm) at another medical facility. The patient was receiving chemotherapy. In a repeat ERCP with cholangioscopy a tumor ingrowth of the stent was revealed and confirmed by an intraductal biopsy. The treating physician referred the patient for an RFA procedure.