Dermatitis herpetiformis

A chronic autoimmune subepidermal bullous disease characterized by grouped pruritic lesions such as papules, urticarial plaques, erythema, and herpetiform vesiculae, with a predominantly symmetrical distribution on extensor surfaces of the elbows (90%), knees (30%), shoulders, buttocks, sacral region, and face of children and adults. Erosions, excoriations and hyperpigmentation usually follow. It may also appear as a consequence of gluten intolerance.

Petechiae

Petechiae are pinpoint-sized reddish/purple spots, resembling a rash, that appear just under the skin or a mucous membrane when capillaries have ruptured and some superficial bleeding into the skin has happened. This term refers to an abnormally increased susceptibility to developing petechiae.


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PMID (PMCID)
21848992
 FEMALE
Dermatitis herpetiformis presenting as digital petechiae.
Heinlin J, Knoppke B, Kohl E, Landthaler M, Karrer S.
Pediatr Dermatol. 2012;29(2):209-12.
Dermatitis herpetiformis should be included in the differential diagnosis of palmar or plantar petechiae, especially when occurring in children or young adults.
21848992
 FEMALE
Dermatitis herpetiformis presenting as digital petechiae.
Heinlin J, Knoppke B, Kohl E, Landthaler M, Karrer S.
Pediatr Dermatol. 2012;29(2):209-12.
Dermatitis herpetiformis presenting as digital petechiae.
22106118
 MALE Middle Aged
Leukocytoclastic vasculitis as the presenting feature of dermatitis herpetiformis.
Naylor E, Atwater A, Selim MA, Hall R, Puri PK.
Arch Dermatol. 2011;147(11):1313-6.
Physicians should consider the possibility of dermatitis herpetiformis in patients with petechiae and leukocytoclastic vasculitis because leukocytoclastic vasculitis may be a prominent feature of dermatitis herpetiformis.
22106118
 MALE Middle Aged
Leukocytoclastic vasculitis as the presenting feature of dermatitis herpetiformis.
Naylor E, Atwater A, Selim MA, Hall R, Puri PK.
Arch Dermatol. 2011;147(11):1313-6.
Physicians should consider the possibility of dermatitis herpetiformis in patients with petechiae and leukocytoclastic vasculitis because leukocytoclastic vasculitis may be a prominent feature of dermatitis herpetiformis.
12403313
 MALE Middle Aged
Palmar petechiae in dermatitis herpetiformis: a case report and clinical review.
McCleskey PE, Erickson QL, David-Bajar KM, Elston DM.
Cutis. 2002;70(4):217-23.
Palmar petechiae or purpura is an unusual finding in dermatitis herpetiformis (DH) that occurs in children but is only rarely reported in adults.