Have you gotten a second opinion from another doctor? I would think that they could probably surgically remove them if it's important to you, but it would be an optional surgery if there isn't a medical need. You can even try a plastic surgeon to see if they think there is something they can do to improve the appearance- if that's the biggest concern you have. I would probably start with a second opinion from another doctor though, especially if you have a few of them in a few different spots.
they look just like knuckle pads ...