Mucosal vulval lichen planus: outcome, clinical and laboratory features

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Abstract
Background  Mucosal lichen planus of the vulva is a rare but increasingly recognized condition. It has potentially severe complications such as fusion of the labia and vagina; the risk of developing squamous cell carcinoma (SCC) may be increased. An association between hepatitis B and C infection and skin or oral lichen planus appears to exist in certain geographical areas.Objective  To investigate the course of mucosal vulval lichen planus, its response to treatment and associated laboratory features.Subjects and methods  Forty‐four women with mucosal vulval lichen planus were studied between 1997 and 2000 and laboratory data were collected.Results  Thirty of 44 patients had additional oral lesions, only nine had cutaneous findings compatible with lichen planus. We did not find an association with antibodies to hepatitis B or C virus in this British study population. All women were treated with potent to very potent topical corticosteroids; however, in the majority of patients symptoms persisted. In seven (16%) patients vulval lichen planus was in remission after a disease duration between 2 and 18 years (mean 10.6 years). One patient developed a vulval SCC.Conclusions  Screening for hepatitis B and C in women with mucosal vulval lichen planus in the UK seems unnecessary. We recommend long‐term follow‐up, and that all non‐healing ulcerative and papular lesions should be biopsied.

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