Hi Daughter 07 -- sorry about your Dad. And sorry that he is in pain, too. I would not say that abdominal pain is all that common in GBC per se, but if there is a large tumor or tumors either pressing on or obstructing anything, then yes, I guess pain would be a result. True for any tumors from any cancers, I would think. In its early stages, GBC commonly presents with problems such as gas, bloating, vomiting, sort of colicky intermittent discomfort, that sort of thing. Your father is starting on 2 chemo medicines that are widely used for GBC . While this chemo regimen is no picnic, it is usually pretty well tolerated by many. Hopefully the chemo will work to shrink his tumor(s) so that the pain is decreased and so perhaps radiation and/or surgery might then be an option. I guess it just depends. I am sure his doctors have explained their plan to him. Also hopefully he is being followed at a major cancer center, since this cancer is rare.
Please do write again and let us know how your father is doing!
M.