I have a 9 year old husky-shepard mix. Over the past few months, I've noticed a small lump on her ear (the outside). Just recently, it got a lot bigger. It's about 2 mm in diameter and shiny and white. It is hard, and skin flakes off when rubbed gentley. My dog doesn't appear to feel any sort of pain when I touch it. Here are some pics, although my camera is really quite useless, so bear with me:
