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Concept information

Skin and Connective Tissue Diseases > Skin Diseases > Skin Diseases, Papulosquamous > Lichenoid Eruptions > Lichen Planus

Preferred term

Lichen Planus  

Type

  • Topical Descriptor

Broader concept

Narrower concepts

Entry terms

  • Lichen Ruber Planus
  • Lichen Rubra Planus

Note

  • a skin disease; sometimes called simply "lichen": check text; lichen planus atrophicus: index here & do not confuse with LICHEN SCLEROSUS ET ATROPHICUS

Scope note

  • 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.

In other languages

  • punajäkälä

    Finnish

  • lichen
  • lichen planus
  • lichen planus non specificatus
  • lichen ruber
  • lichen ruber planus
  • määrittämätön punajäkälä
  • punajäkälätauti
  • Lichen planus

    Swedish

URI

http://www.yso.fi/onto/mesh/D008010

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