Hello All, Have'nt been on site for ages, so hope you are all better than when i was last here. Since then my brother who has stage 3 cancer, which is in lymph node behind his nose, and it is in the back of his head, He has already had the op to remove his gums and roof of mouth and lymph nodes in his neck. What i dont understand is he was told he needed 6 weeks of radiotherapy, which he is on the last week, and today he was told he needs an extra week making it 7 weeks. But they have'nt scanned him and they say they wont know anything untill they scan him a few weeks after the treatment, this is because they say the radiotherapy is still working for sometime after the treatment has finished. so how do they know they need to give him more. Can they tell by blood tests cos he has one every couple of days. Can anyone give any advice on this.