Two Cases of New-Onset Lichen Planus Following BNT162b2 mRNA COVID-19 Vaccine

Various cutaneous side effects have been reported to be observed following coronavirus disease-2019 (COVID-19) vaccination. Urticaria, maculopapular eruption, vasculitis, pityriasis rosea, psoriasis and papulovesicular exanthem are some dermatological diseases which are observed after COVID-19 vaccination. Hyperinflammatory environment resulting from the cytokine storm in the setting of COVID-19, immune complex deposition and direct cytopathic effects of the virus are implicated in the etiopathogenesis of the dermatological manifestations. Infectious agents, immunologic factors, vaccinations and drugs have all been blamed in the emergence of lichen planus. With the cases presented in this case report, we would like underline that new-onset cutaneous lichen planus may be seen after mRNA COVID-19 vaccination. Copyright © 2022 by Turkiye Klinikleri.