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Recognition of Epidermal Transglutaminase by IgA and Tissue Transglutaminase 2 Antibodies in a Rare Case of Rhesus Dermatitis
Published on: December 15, 2011
Erythema elevatum diutinum arising in the setting of dermatitis herpetiformis
Mehr Nida Aftab1, Anthony Dee, Thomas N Helm
1Department of Dermatology, State University of New York at Buffalo, USA.
Abstract:
Dermatitis herpetiformis is an autoimmune blistering disease characterized by granular deposits of immunoglobulin A (IgA) in dermal papillae. Erythema elevatum diutinum is a chronic form of vasculitis associated with IgA paraproteinemia. We report a patient with dermatitis herpetiformis who developed characteristic erythema elevatum diutinum lesions on the elbows and knees despite sulfone therapy. We speculate that the different patterns of IgA deposition in the skin account for the clinical manifestation of these 2 uncommon disorders.
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