I have recently been treatex for thyroid cancer. Full thyriodectomy and radioactive iodine treatment. Prior to my diagnosis i have had multiple swollen lymph nodes in the neck for years. During my radioactive treatment on the exit scan, the tracer had picked up on lymoh nodes under my jaw. The doctors are saying it could be of a recent infection but i know i have not had any and they have been there for years. Could it be lymphoma? anyone has experience??