[Lichen ruber planus after hepatitis B vaccination]

Lichen planus is a T cell mediated papular skin disease. Chronic hepatic disorders, especially chronic hepatitis, have been found to be associated with lichen planus. Recently, it has been recognized that lichen planus can be triggered by hepatitis B vaccination. Here we report on cases of lichen planus triggered by vaccination and review the current literature. Hepatitis B vaccination is being increasingly used and should be considered as a possible trigger of lichen planus.