They did scan hers too, I just forgot that's when they found she had extra. There is a rogue gene or something in our family. A few of us have extra bones, dd has extra set of sinuses & 3 of us have had Chiari 1 Malformation. 2 of us have had to have the surgery because the brain stem was being severely compressed by the skull & spinal column.I had mine scanned before so if i had extras they should have noticed. But i may end up at the specialists office again.