Fractured Nose: Callous Formation or Bone?

I fractured my nose 5 days ago. The healing process has been surprisingly quick; swelling has subsided and pain is minimal. However, there is a bump on the right side of my nose. In the right light, the bump creates the illusion that my nose is slightly crooked. So my quesion is: Is this bump most likely a callous formation, or the actual piece of bone that was displaced on impact? In most cases, are these types of bumps permanent, or is it typical of them to gradually retreat? Thank you!