RT Book, Section A1 Katz, Stephen I. A2 Kang, Sewon A2 Amagai, Masayuki A2 Bruckner, Anna L. A2 Enk, Alexander H. A2 Margolis, David J. A2 McMichael, Amy J. A2 Orringer, Jeffrey S. SR Print(0) ID 1161331917 T1 Dermatitis Herpetiformis T2 Fitzpatrick's Dermatology, 9e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9780071837798 LK dermatology.mhmedical.com/content.aspx?aid=1161331917 RD 2024/03/28 AB AT-A-GLANCEIntensely itchy, chronic papulovesicular eruption distributed symmetrically on extensor surfaces.Characterized histologically by dermal papillary collections of neutrophils.Granular immunoglobulin A deposits in normal-appearing skin are diagnostic.Epidermal transglutaminases appear to be the dominant autoantigens.Most, if not all, dermatitis herpetiformis patients have an associated gluten-sensitive enteropathy.The rash responds rapidly to dapsone therapy and, in many patients, to strict adherence to a gluten-free diet.