title: Lichen planus and lichen-planus-like reactions.
abstract: Lichen planus is a common disorder affecting the skin, oral and genital epithelium, hair and nails. It is said to account for approximately 1% of new patient referrals to skin clinics (Samman, 1979). It is, therefore, an important entity to the dermatologist. However, lichen planus and lichen-planus-like reactions have been described in a number of clinical situations which may bring them first to the attention of doctors practising in other specialties.
mesh_terms: D001327:Autoimmune Diseases / Q000150:complications; D050260:Carbohydrate Metabolism; D006086:Graft vs Host Disease / Q000150:complications; D006801:Humans; D008010:Lichen Planus / Q000139:chemically induced / Q000209:etiology / Q000473:pathology*; D008107:Liver Diseases / Q000150:complications; D012867:Skin / Q000473:pathology*