Sorry guys, photo's attached now. Lots of tiny little "tags" and then one big one which developed about a week ago. Does not seem to worry Bismarck, does not scratch or itch but you can feel them very prominently on his neck.
I read your thread from last year on what you thought were skintags on Bowser. Our bully had exactly the same issue on his neck and the back of his head - did you ever get a second diagnosis on the issue or has it improved at all? Any feedback you may have will be most appreciated!!