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Liken Planus Hipertrofik: Laporan Kasus (Hypertrophic Lichen Planus: Case Report)
ABSTRACT
Hypertrophic lichen planus (HLP) is a rare case with 1% prevalence. HLP is the most pruritic variant of lichen planus. Most of the etiologies are idiopathic, certain drugs, or hepatitis C viral infection. This article reported a case of a 35 year-old woman with symmetric hyperkeratotic verrucous, papules, nodules, and hyperkeratotic and hyperpigmented plaques at dorsal of the feet; hyperkeratotic and hyperpigmented lesion was also found under the breast and vulva since 11 years ago. The lesion became thick and itchy. Histopathological HE (hematoxyllin eosin) stain epidermal study revealed a saw-tooth appearance, apoptotic keratinocytes on the basal cell layer and a band-like infiltrate of lymphocytes at dermoepidermal junction. The patient had a reactive HbsAg. The diagnosis of HLP is based on clinical presentation and histopathological finding. Reactive HbsAg support the diagnosis of HLP.
Key words: hypertrophic lichen planus, dermatoepidermal junction, reactive HbsAg
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