Endoscopy is an invasive procedure with risks. Dirty equipment in about 30% of uses! You can Google that for more info.

There is risk of damage to the throat and esophagus too.

So compared to the gluten free diet...which does not have these risks, I'd go the safe way for now.

We had a poster here who had repeated upper endoscopies and ended up with permanent nerve damage in his back.
His story is long, complex, but it seems to always come back for me to his diagnostic events. (my opinion). I did alot of searching for him, and if you read his other threads, the oldest ones, you'll find some links there I shared with him.
http://neurotalk.psychcentral.com/sh...424#post815424

Endoscopies are big money makers for doctors. Since there is really no drug therapy to get from doctors in the event of having a upper positive endoscopy for celiac (and there are false negatives too), and there is only the diet to follow, then you can do the diet anyway, and save your child from the invasive procedure. You can always have it done later if need be.