Debora,that's a good question for your grans doctors. It may be true, but my knowledge is limited pretty much to my own circumstance. I think there have been some successful transplants done for cc patients. My understanding is that surgery generally (resection or whipple) presents the best hope for a 'cure'. But, ask this of the doctors.
Hospitals/Doctors Link, Our Experiences: http://www.cholangiocarcinoma.org/punbb/viewtopic.php?id=3126 See page 4 of thread for Dr. Tomoaki Kato info.
Major USA Cancer Centers: http://www.cholangiocarcinoma.org/majorcancercenters.htm