I have to agree. At 90 years of age I would not persue radiotherapy for an oral cancer. I'm sure he has had a great life to date. I would not be encouraging him to make his last years miserable. The surgery may well have rid him of all the cancer. Radiation is just a follow up and I feel at this age is not a necessity.
I hope you both enjoy these last years together.
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!