Heterogeneous Disease: A Child Case of Lichen Planus Pemphigoides Triggered by Varicella

Lichen planus pemphigoides (LPP) was described as a rare and controversial disease characterized by tense bullae on both lichen planus papules and uninvolved skin, with subepidermal bullae and linear deposits of immunoglobulin G and C3 along the basement membrane zone. The document presented a child case of LPP triggered by varicella, supporting the view that LPP encompassed a heterogeneous group of subepidermal autoimmune blistering disorders associated with lichen planus.