I have two observations that may or may not be of value to you.

I had a PEG for a long time. People that do, frequently develop gall stones... in the hundreds. I ended up in an ER when my gall bladder went south in unbelievable pain. Surgery was done laproscopically the next day and it was removed without incident. Which is the second point, that the GB is not an essential organ, and its removal can be done easily with a minimally invasive procedure. Not knowing more about what makes your doctor think this is a cancer, I don't know if this information helps you. As a side note, in 6 years of working with patients, I have never heard of a gall bladder second primary cancer.

Brian, stage 4 oral cancer survivor. OCF Founder and Director. The first responsibility of a leader is to define reality. The last is to say thank you. In between, the leader is a servant.