Skin eruption that occurs in some patients with celiac disease
Disorder characterized by reaction to ingested gluten
Symptoms
Puritic eruption, that resolves with discontinuation of gluten intake
Can affect 4-20% of patients w/CD
Other symptoms from celiac disease include: GI are most common --> chronic diarrhea, bloating/distention, weight loss (40-50%); fatigue; joint pain (20-30%); painful neuropathy (up to 30%)
Physical Exam Findings
Papulo-vessicular eruption
Most commonly involving arms (often extensor surfaces), knees, buttocks; can also affect back, abdomen, scalp, groin, other
Tests
Skin biopsy
Serum TTG-IgA level, total IgA (r/o IgA deficiency) - drawn while consuming gluten
CBC and iron studies; other labs to assess for other causes