Hi Amber, your dad's case is quite similar to mine except that I have never smoked in my whole life. The greatest lymph node on my neck also measured over 7 cm and was considered inoperable. I just received concurrent radiation and chemotherapy. Tumors on both tonsil and lymph nodes shrank gradually during treatment and follow up scans in 2 months after completing treatment confirmed that no cancer cells were detected and I have been in remission for 3 years already. To be in stage 4 is indeed the worst scenario but definitely not terminal. So don't worry, your dad can be as lucky as any cancer survivors here.

Karen.