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Concept information

Preferred term

Lichen Planus  

Type

  • mesh:Descriptor

Definition

  • An inflammatory, pruritic disease of the skin and mucous membranes, which can be either generalized or localized. It is characterized by distinctive purplish, flat-topped papules having a predilection for the trunk and flexor surfaces. The lesions may be discrete or coalesce to form plaques. Histologically, there is a "saw-tooth" pattern of epidermal hyperplasia and vacuolar alteration of the basal layer of the epidermis along with an intense upper dermal inflammatory infiltrate composed predominantly of T-cells. Etiology is unknown.

Broader concept

Narrower concepts

Entry terms

  • Lichen Ruber Planus
  • Lichen Rubra Planus

In other languages

URI

http://data.loterre.fr/ark:/67375/JVR-T741R69R-3

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