- skin biology
- signs and symptoms
- investigations
- conditions and diseases
Section Links
Lichen Planus
- epidemiology
- signs and symptoms
- diagnosis
- pathophysiology
- causes and risk factors
- treatments
- course
- patient education
- community resources
- references
Epidemiology
Signs and Symptoms
Prurutic, purple, polygonal papules
General self-limiting and resolves spontaneously 1-2 yearsa after onset, often leaving zones of postinflammatory hyperpigmentation.
Oral lesions may last for years.
Diagnosis
Pathophysiology
Pathogenesis is not well known, though may be related to cell-mediated immune reactions following antigenic release at levels of basal cell layer and dermoepidermal junction.
Causes and Risk Factors
Treatments
Course
Malginancy emerging from lichen planus areas has been observed, but direct pathogenic relationship is not clear.
Patient Education
Community Resources