Oral lichen sclerosus: an overview and report of three cases

Lichen sclerosus is an unusual, chronically relapsing mucocutaneous disease that usually afflicts the anogenital region. Oral lesions of lichen sclerosus are rare, with only 36 histologically verified cases reported to date. The classic histopathologic findings of oral lichen sclerosus include: an area of subepithelial hyalinization, loss of elastic fibres, and band-like mononuclear inflammatory infiltrate. Despite its rarity, oral lichen sclerosus should be included in the differential diagnosis of porcelain- or ivory-white macules.

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