The fact is that the pain might be caused by the removal of the fallopian tube because your body might have not adjusted to this. Now the tumor is very serious but I am not sure if you can develop another tumor on your thigh from the tumor on your fallopian tube. The problem is that this can’t be diagnosed like this. You will have to have some test done in order to be sure if you have any growths in your thigh. The caches of cancer are low but it can happen. So try to see your doctor and see what test do you need to do. I hope this helped.
All the best to you,