Base of tongue cancer - granulation tissue

Hi everyone

Need some advise, in case anyone has been through same / similar situation

It is a bit of a long story really, in a nutshell I had hpv16 positive base of tongue cancer, lymph node removed at the end of November 2019, 4 tonsils taken out along with base of tongue cancer itself first week of January 2020. Had 2 rounds of chemo and 30 sessions of radio therapy which ended at the end of March. Had my PET CT scan yesterday, got called in this morning to discuss the results, which was quite fast. Mmmm they're a bix mixed, everything looks good apart from one little thing, there was a red area on the scan so I went to see my surgeon today (luckily he had time to see me), he had a look down with a camera and told me he saw something called granulation tissue. It didn't sound like this was the end of treatment / this whole cancer experience for me, sounded like there could be continuation :-( Researching granulation tissue online isn't reassuring. Area where cancer was removed from should have healed by now surely? It's been 3 months. But no, there is this tissue there now! Has anyone come across this before at all? Any advise is much appreciated

Thank you