 [ Symptoms ] stage 2 throat and neck cancer undergoing chemo and radiotherapy need second opinion [ Disease ] in my opinion spread to the brain is unlikely but its size can increase and cause pressure on brain unfortunately prognosis is bad chemo and radio are the only option you are describing high spread which suggest surgery is no longer an option however you can ask your doctor to remove parts of it to regain breathing and talking also to reduce pressure on the back of his head i am very sorry but i have seen a similar case where chemo and radio only stoped the progress stay strong good luck