van Joost T, van Ulsen J, Vuzevski V D, Naafs B, Tank B
Department of Dermato-Venereology, Erasmus University, Rotterdam, The Netherlands.
J Am Acad Dermatol. 1990 Feb;22(2 Pt 2):359-61. doi: 10.1016/0190-9622(90)70048-m.
Patch test reactions in a patient with purpuric contact dermatitis to 5% benzoyl peroxide are described. Alterations of the capillary endothelium included obliteration of the lumina with perivascular mononuclear cell infiltrates. There were no epidermal alterations. These observations are discussed with reference to the data in the literature on vascular damage in "dermal" contact dermatitis.