A Case of Zosteriform Lichen Planus Occurring on Herpes Zoster Lesions

Abstract

Many cutaneous reactions have been known to occur within resolved herpes zoster lesions. These include granuloma annulare, pseudolymphoma, lymphoma, granulomatous vasculitis, lichen planus and other dermatoses. The pathogenesis of these reactions remains unclear and it has been proposed that they may represent isotopic response. A dermatomal distribution in lichen planus is very rare. We report here a case of zosteriform lichen planus that was developed on the site previously affected by herpes zoster.