Primary sclerosing cholangitis
http://www.mayoclinic.com/health/primary-sclerosing-cholangitis/DS00918
Depending on the source, 10%- 30% of people with PSC will develop CCA but not all CCA patients have PSC.
PSC wasn’t found until after my CCA diagnosis. In fact, I had never heard of PSC until I woke up from my liver tx (approximately 2 months after my CCA diagnosis).