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Dermatitis Herpetiformis


sugarsue

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sugarsue Enthusiast

If you have undiagnosed dermatitis herpetiformis should a celiac panel pick up gluten intolerance? Or will a skin biopsy be necessary? My 7 yr old daughter suffers from molluscum and I have started wondering if it is really DH. It does not look like the bad cases I see on the internet, but it does look like some of the pictures I've found. She had her celiac test yesterday and I'm anxiously awaiting the results. We will start a gluten-free trail diet this week as well.

But I'm obsessing, like I did with my other daughter, trying to figure out if she is gluten intolerant/celiac. Do you have any information on DH that might be helpful for me while I'm in a waiting mode? Our Pedi is giving us the celiac panel even though he thinks we don't need it and probably won't be open to a skin biopsy on her rash.

Thanks!


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Lisa Mentor

The Serologic Blood Panel is not as accurate as we would like, and children under the age of five, it adds additional inaccuracies.

You can biopsy at the site of the outbreak and obtain a Celiac diagnosis if it test positive for DH.

I would not begin the gluten free diet until all testing is done.

nora-n Rookie

biopsy mut be done on healthy skin that never had an outbreak, as the IgA is used up in the outbreak.

It could take years until the gut is affected bad enough for the blood tests to show up positive. Some DH patients never get any gut affection.

They also say that a trial of dapsone will show if it is DH.

The antibody invlved in DH is ttg3, whereas the celiac antibody is ttg2. The blood test for celiac is only for ttg2.

nora

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