Dermatitis herpetiformis CT

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Dermatitis Herpetiformis (also called Duhring's disease), is a chronic itchy rash which is frequently associated with Celiac Disease. The rash is made of papules and vesicles which are present on different parts of the body mostly commonly on neck, trunk, buttocks and knees. It is an autoimmune mediated skin condition, which is IgA mediated reaction and is associated with gluten sensitivity of small bowel. There is presence of antibodies which leads to positive serology test results.

Dermatitis herpetiformis is associated with high prevalence of other autoimmune diseases.

Key CT Findings in Dermatitis Herpetiformis

Dermatitis herpetiformis is associated with celiac disease. When Celiac disease is present, CT scan of the abdomen can be done. A CT scan will show both small and large bowel, the CT scan findings will be<ref>Lomoschitz F, Schima W, Schober E et-al. Enteroclysis in adult celiac disease: diagnostic value of specific radiographic features. Eur Radiol. 2003;13 (4): 890-6. doi:10.1007/s00330-002-1455-6<ref>;

1. jejunum and ileum will show reversed folds.

2. Thick Ileum folds.

3. Engorgement of vessels.

4. Mesenteric lymph modes will be cavitated.

5. Submucosal fat deposition.