Hi Susan and Christine,
Thanks for you advice!
I had to cancel my MRI. I pushed for a biopsy because it would take forever to reschedule an MRI, wait for the MRI results, then schedule for a biopsy, then wait for those results. I have sinus surgery in four weeks so I am trying to speed up the process. I was sent in a whirlwind trying to schedule a biopsy with cytology and pathology, but was told that they can't biopsy the roof of my mouth for some reason.
So now my doctor is offering to surgically remove the lump for me. I feel that might be the quickest and most direct course of action to figure out the nature of what is growing on the roof of my mouth. I assume/hope he will send it to testing. More updates to come.