I believe that you need not worry about your daughter, but follow through with the consultation with the neurosurgeon. My own daughter was suspected of the same thing. She was born with hydrocephalus and already had a more misshapen head, and her neurologist alarmed us with the prospect that she would need this additional surgery to correct the fused suture. Thankfully, a CAT scan showed the neurosurgeon clearly that the suture was not fused and even his basic examination of her head confirmed that she didn't have craniosynostosis. The surgeon has made an excellent clarification to us a couple of times. Where as a skull may have a certain shape and therefore a specific description for that shape, it doesn't mean that the cause of that shape is what another doctor (like your ped,) suspects is the cause. In other words, there may be a scientific term that describes the shape of your daughter's skull right now, but it doesn't necessarily mean there is a problem to correct. She may have just inherited her father's head! But do go through with the consult and any tests just for your complete peace of mind. And don't be intimidated by having a test done. We have had to go through that a few times with our daughter and you just learn as you go.
Good luck and feel free to contact me if you have any more questions come up!