title: Lichen planus, lichenoid drug reactions, and lichenoid mucositis.
abstract: Lichen planus is a common mucocutaneous disease affecting a significant portion of the general population. This article reviews the most current concepts on the epidemiology, etiology, pathogenesis, clinical presentations, and treatment of oral lichen planus, lichenoid drug reactions, and lichenoid mucositis.
authors.affiliation: Department of Oral Medicine, University of Pennsylvania School of Dental Medicine, 240 South 40th Street, Philadelphia, PA 19104, USA. scottsd@pobox.upenn.edu
authors.forename: Scott S
authors.initials: SS
authors.lastname: DeRossi
authors.forename: Katharine N
authors.initials: KN
authors.lastname: Ciarrocca
mesh_terms: D006801:Humans; D017676:Lichen Planus, Oral / Q000209:etiology / Q000473:pathology / Q000628:therapy; D017512:Lichenoid Eruptions / Q000139:chemically induced / Q000473:pathology; D013601:T-Lymphocytes / Q000276:immunology