Kris had a residual lymph node. It was smaller and harder post treatment. His 3 month post treatment PET scan showed some residual cancer. He then had a neck dissection and it was removed. The pathology came back as necrotic tissue only.
I would make sure your radiation oncologist is aware of it and ask what thy plan to do about it.
Tammy


Caregiver/advocate to Husband Kris age 59@ diagnosis
DX Dec '10 SCC BOT T4aN2bM0 HPV+ve.Cisplatin x3 35 IMRT.
PET 6/11 clear.
R) level 2-4 neck dissection 8/1/11 to remove residual node - necrotic with NED
Feb '12 Ca back.. 3/8/12 total glossectomy/laryngectomy/bilat neck dissection/partial pharyngectomy etc. clear margins. All nodes negative for disease. PEG in.
March 2017 - 5 years disease free. Woohoo!