Do you know what type of tumor? There are many types.
While they are giving him a low chance - there are factors such as his previous health, age, if he has other diseases, etc. that all factor in.
It is really hard to give a time line. I am sorry to hear about your friend.
didnt the doctos say? prob 6 months. but he may have already had it for a few years so he may live a while. if he lived awhile undiagnosed. as for quality of lidw..