Good Morning, So sorry to hear this, I had SCC Larynx Cancer, diagnosed Sept. 21. Stage 3, its a long process, got Biopsied in November, confirmed,, did not spread my ENT, Referred me to an Oncologist, started Radiation twice daily in late January for 7 weeks, no Chemo, as my kidneys aren't in the best of shape,I'm not on Dialysis, but want to avoid it, anyway your question, can it spread, I'm not a Dr. Obviously. All I can say is everyday that passes things yes can happen. As for Insurance, they have to except her, get Charity Care in the meanwhile...OK Radiation is rough, but honestly you get through it, in her case they may choose Chemoradiation, which is excellent as well, she's young..Well Radiation ended in 3/22/22 ..CT Scan and Scope as of October 22, no recurrence, but not to say it won't come back..Hopefully not, side effects are rough, can't deny it, well your Dr. Will tell you..Have to go for Scans every 3 months for the 1st year, my advice again. Please insist on having her seen asap & start treatment..I'm here for you, please keep us posted..Hugs ❤