I just found this site, need to talk to other parents of adult children who have recently been diagnosed. M, my daughter had an ultrasound of her neck, because she had a lump behind her right ear at the jawline, her GP sat us down and explained we needed to see an ENT asap, the same day she had a fine needle biopsy and blood tests done. That was oct 2018, dec 19th she had the whole thyroid and 11 lymph nodes taken out, 5 of the 11 had cancer in them. She seems to be doing well with the synthetic thyroid hormone so far, and has recovered well from the surgery. We just learned the name of the cancer she has this week, diffuse sclerosing papillary thyroid cancer.