Thank you for your response. I will also join the blood cancer group. He is getting R-Chop chemo treatments. They will end in Oct. then they will have to operate to remove the remaining thyroid tissue. I believe they call it metastatic because of his other two cancers. We were at Mayo this week and new CT and PET scans show the tumor behind his nasal area has shrunk. It also appears the cancerous thyroid tissue has shrunk a little. We will the surgeon about that when we return to Mayo on another trip.