Mondo Description A chronic, recurrent, pruritic inflammatory disorder of unknown etiology that affects the skin and mucus membranes. It presents with rashes and papules that tend to resolve spontaneously. It may be associated with hepatitis C. Certain drugs that contain arsenic or bismuth are associated with reactions mimicking lichen planus.

Disease Ontology Description A lichen disease that is located_in skin, located_in tongue or located_in oral mucosa, which presents itself in the form of papules, lesions or rashes.