Lichen planus flare following COVID‐19 vaccination: A case report

We report the third case of cutaneous lichen planus (LP) following COVID‐19 BNT162b2 vaccination in a 59‐year‐old woman with previous LP. The reactivation of LP in patients with dormant LP suggests a possible vaccine‐induced immune dysregulation. We suggest that the already described vaccine‐induced...

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Detalles Bibliográficos
Autores principales: Herzum, Astrid, Burlando, Martina, Molle, Mattia F., Micalizzi, Claudia, Cozzani, Emanuele, Parodi, Aurora
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8650756/
https://www.ncbi.nlm.nih.gov/pubmed/34934493
http://dx.doi.org/10.1002/ccr3.5092
Descripción
Sumario:We report the third case of cutaneous lichen planus (LP) following COVID‐19 BNT162b2 vaccination in a 59‐year‐old woman with previous LP. The reactivation of LP in patients with dormant LP suggests a possible vaccine‐induced immune dysregulation. We suggest that the already described vaccine‐induced upregulation of Th1 response may play a relevant role in LP reactivation, through an increase in inflammatory cytokines involved in the pathogenesis of LP. Interestingly, LP has already been associated with vaccinations and viral infections including COVID‐19 disease. However, the exact mechanism underlying LP (re)activation after Pfizer‐BiotNtech COVID‐19 vaccination is still widely unknown and needs to be further investigated.

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