Lichen planus (LP) is a multifaceted autoimmune disease affecting the skin, nails, hair, and mucous membranes, with several clinical subgroups. Cell-mediated immunity plays a key role in its progression. This chapter reviews the known genetic associations of lichen planus including HLA as well as non-HLA genes.
Keywords: Classic lichen plan; Cutaneous lichen plan; GWAS; Immunogenetics; Immunogenetics of lichen planus; Lichen planopilaris; Lichen planus; Mucosal lichen plan; Pathogenesis; Single nucleotide polymorphism.
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