What are the chances of having a high tTG and a negative biopsy—even though I have a child who was biopsy-diagnosed with celiac—and still being negative for the disease?

It’s possible to be truly negative with these facts, especially if the tTG are only mildly elevated. Also check the more specific EMA test. If it’s positive, we would conclude you’re a potential celiac, which means the disease is simply waiting to explode, and we’d suggest a gluten-free diet. March, 2016