Squamous is what I had on my face earlier this year. She was sure it would be a skin tag, until the labs came back. I was lucky to have a dermatologist who was specializing in cosmetic surgery, so you can't even see the mark, now. It popped up one day out of nowhere, was removed within a couple weeks. 6th month checkups from now on.
I'm glad your doctors are checking thoroughly, Jim. Never miss a check-up, and go show them anything at all that shows up...even if it looks perfectly normal.