Which of the following is a sign of celiac disease in childhood?

• A. Dermatitis herpetiformis
• B. Celiac disease
• C. Crohn's disease
• D. Food allergy

Answer: (A)

Dermatitis herpetiformis is a skin manifestation of gluten-sensitive enteropathy and can be a clue to underlying celiac disease in children. It presents as intensely itchy, grouped vesicles on extensor surfaces (like elbows, knees, and buttocks) and is linked to immune reactions to gluten with IgA deposits in the skin. When this distinctive rash appears in a child, it prompts testing for celiac disease (such as tTG and EMA antibodies) and consideration of a gluten-free diet, which often improves both the skin condition and intestinal symptoms. The other options are not signs of celiac disease: the disease itself is what celiac refers to; Crohn's disease is a different inflammatory bowel disease; and a food allergy is not a specific sign of celiac disease.