To rhoisky: I have a friend who came here with a scar and now she got a resident visa. She came with her children in a visit visa, after her medical it was found out that she's still having that scar with her. If she (your wife) will be under your sponsorship then I'm sure there's no problem with it if she will submit to a six-month medication which will be advised by the Medical Commission..Good luck,I wish your family will be re-united..