It is possible, but it would also be advisable for her to get this diagnosis confirmed by MRI before she assumes it to be correct.
Yes it's possible to be born without a uterus. Last week actually I read an article that there was a successful uterine transplant and the lady was able to become pregnant via IVF. I'm sorry she was born this way, I was born with a huge deformity and have had it fixed. Modern medicine is great!