Julie Take a breath and relax. This could be many things and until your vet looks at it don't panic. Berners get warts, cysts, ingrown hairs, bug bites etc. Only when your vet looks at it and examines it will you know. (my bet it something innocent) The other good news is even if it is some kind of cancer you are probably catching it early so there is a chance to treat it.
I think it is sad that we (the Berner community) so strongly focus on our dogs dying of cancer that we often scare people to death that every lump and bump is a death sentence. Most times it is not. It is fair for us to be concerned and have bumps checked out, but we shouldn't terrorize people into thinking every lump is a death sentence. Susan Ablon Gweebarra BMD Balch Springs, Tx http://www.pageweb.com/gwebara