Hi, I'm trying to find out some info regarding stage 4 and I believe it's T2 non small cell lung cancer. It's my partners ex husband and it's a difficult situation that we don't think the grown up children are coping with, could anyone give me a clue as to what time span we could be dealing with, he was diagnosed about 3 months ago and is currently having chemotherapy as the tumour is too big to operate on and its position is at the top of the lung.