Hi, Mark.
I am glad to hear that you are home now.
Please get a second opinion from a qualified otolaryngologist who specializes in oral, head, and neck cancer.
You've been worried about this for a long time and now you can visualize a cyst-like structure. It's up to you to get it taken care of. Looking on the mirror over and over again isn't going to help.
I'm sorry for the tough love, but it seems like you need it. Here's to hoping it's nothing serious, but the only way you'll know is with a biopsy.
Good luck and please keep us posted.
~Kerri