I got so excited about the normal microarray results yesterday that I didn't really post the full story.
Basically, the short version if you didn't see my original post is that the pedi was concerned about Alexander being small (he's in the .7% for weight. That's point seven, not 7th.) and thought he had some curious other features including slight syndactyly (webbing) of his 2nd and 3rd toes, widely-spaced nipples (I've never noticed this), big eyes and just the general shape of his face.
So we did the microarray which looks at all of his chromosomes and makes sure there are no micro-deletions or micro-duplications and that comes back normal. But our pedi still wants us to go to the geneticist. I asked why if the microarray came back normal and he said that there are tons of genetic issues which are so rare that they wouldn't come up with microarray testing. The geneticist might be able to identify that he has this, this, this and this and those symptoms together suggest X syndrome. But at the same time, why are we doing this? He is developmentally on track. He does not have any medical issues that we know of. This all arose from our pediatrician just thinking he was a funny looking kid (and also because small).
So WWF14D? Keep going down this genetic testing rabbit hole (for potentially no reason and a lot of heartache waiting for results) but rule other things out? Just wait to see if any issues arise in the future before going? Get a second pediatrician opinion?
Re: WWF14D?
I would chat with the Pedi more about what he suspects could be the issue, and if it is X syndrome what that means for LO. And talk with him more about the pros/cons of waiting to see how LO progresses. At 4m old, would he even be displaying issues yet? Would there be any benefit to knowing now vs later if something were amiss? A second opinion certainly couldn't hurt either. Just to see what they suggest in terms of wait/see vs. pursuing additional testing and it would be helpful to see if that Dr suspects the same issue.
Depending on the answers to those questions, I think I'd lean towards talking with a geneticist to see their opinion on things. And from there, decide whether to continue with additional testing.
If nothing else it could be information. It could be further peacee of mind.
It could be the last final step and you can move on and not wonder and not look at Alexander the way your Dr mentioned and question.
There's a lot of wonderful advice here, I'd go ahead and keep that appointment.
And it bears repeating, Alexander is a wonderful and amazing little boy and nothing will ever change that.
I think you have a good plan. If it were me I would keep the appointment with the geneticist even if its just a consult. If the testing is invasive I would ask about waiting. I am a very anxious person by nature and the "unknown" scares the crap out of me so I would want to try and get a definitive answer. I'm sorry you are going through this right now. I'm sending you big (hugs).
If it were me I think I'd have the testing done. I think I'd want to know answers so we could arm ourselves with information. Plus I hate the fear of the unknown.
If LO did have a syndrome, I would want to know what it was, and if it involved any other developmental/health issues that could arise in the future.
I would want to be prepared with all the necessary tools/information to support my child.
Also, like pp mentioned, a diagnosis could be important if you planned on having more children.
as a side note, a similar situation happened with my cousin when she was born. she was really small and the doctors saw webbing, nipples spaced far apart, and a few other things that were markers for Turner's Syndrome (or Tucker's? I always forget). my aunt and uncle went back and forth about whether or not to pursue more testing and eventually they went for it and all of the testing came back saying nothing was wrong in the end!
Eta: As someone with a bit of a background in genetics, TLex's X chromosome info is spot on. I wouldn't doubt that's where the traits are coming from at all. I think the only real question is if those traits are just quirks or some sort of disorder. Either way, I'd make sure your geneticist knows about the family history.