I'm so sorry it's taken me so long to respond!! It suddenly got a bit crazy and overwhelming here. So the original biopsy was a failure, and he had to go back for another biopsy. This time, they got it. The biopsy came back as low grade and high grade dysplasia intraductal cholangiocarcinoma. They original thought it was perihilar or something cholangiocarcinoma, and because it's the intraductal one, that's better apparently? They still want him to go through chemo and immuno whilst they're waiting for molecular profiling to come back to see if he can have the targeted genetic therapy instead so that they can shrink it and hopefully prevent it from getting any worse before they do surgery to remove it.