Hi I am sorry to hear your daughter is having such a difficult time
Gall bladder polyps are rarely cancerous but the risk depends how big they are.
Some info here:
I have a 2mm cyst on my gall bladder which was found incidentally during an abdominal ultrasound that was mainly checking for intestinal inflammation. I saw it on the radiologist's report but apparently it was so irrelevant that my GI doc didn't even mention it, she just told me my results were all normal.
F36, DX pancolitis 2015
Last remission 2016
(Moderately severe) left-sided colitis since 2018
Have tried nearly all drugs and quack options available; considering surgery
Currently meds: xeljanz + mesalazine
Probiotics: vsl#3 and mutaflor
Stopped due to insufficient response: budesonide, prednisone, 5ASA enemas, azathioprine + allopurinol, infliximab, vedolizumab (entyvio)