I think jaundice is par for the course with cholangiocarcinoma. Usually it is the first clue that leads to the discovery of the cancer.
Making the jaundice go away is one of the goals for treatment, and the stents are the main procedure used.
I am learning from personal experience that there is often complications with the stents either not working or getting plugged up and many people have two or three stent placements before they have a successful lowering of the bilirubin. I'm on my third which involves an external tube and bag, and this one is finally working, my bili went from 15 to 8.6 within 10 days, so don't give up hope but don't be surprised if you need some adjustments done before you succeed.
O my Father, if it be possible, let this cup pass from me; nevertheless not my will but thine be done. Matt 26:39