Oh no. Having just been and still recovering from the treatment for a reoccurrence ourselves , I know that this is gut wrenching news.
Shout and scream some. Cry. Then face it head on. Push for the best treatment to deal with this. Gather your support crew around. Fight.
I truly hope the scan shows no or minimal spread. I am in your corner , thinking and keeping you in my prayers,
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!