Hi,
Some people over on our General Discussion might possibly be able to help you but it might be easier to check with his oncology team or his GP. They should be able to access his notes and might be able to give you not just this bit of information but also could no something about the grade of the cancer - this often covers how "different" the cancer cells are and often indicates how quickly it might grow.
Hope that helps.
<<hugs>>
Steve
