Dermatitis Herpetiformis
Pronunciation: der-muh-TY-tis her-pet-ih-FOR-mis
A chronic, intensely pruritic blistering dermatosis associated with coeliac disease, characterised by symmetrical papulovesicles over extensor surfaces.
Full Definition
Dermatitis herpetiformis (DH) is a cutaneous manifestation of gluten sensitivity, with IgA deposits detectable in the dermal papillae on direct immunofluorescence. The condition presents with clusters of small, intensely itchy vesicles on the elbows, knees, buttocks, and scalp. Despite the name, it is not related to herpesvirus infection—a critical editorial distinction. In clinical documents it frequently appears alongside gastroenterology correspondence regarding coeliac disease. Editors should note that 'herpetiformis' is a Latin adjective meaning 'herpes-like in appearance' and does not imply viral aetiology.
Usage
Usage note: Do not abbreviate to 'DH' without prior expansion. The name references morphological resemblance to herpes lesions, not herpesvirus aetiology—a common misconception that editors must watch for.
In Context
- "The gastroenterology referral noted a longstanding diagnosis of dermatitis herpetiformis managed with dapsone and a gluten-free diet." — Referral letter
- "Editors should flag any copy that implies dermatitis herpetiformis has a viral cause; the name is morphological, not aetiological." — Editorial training note