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Rare lichen planus

Disease definition

Lichen planus (LP) is a common inflammatory dermatosis characterized by the development of pruritic violaceous papules or plaques on mucocutaneous surfaces. Eruptions can involve the face, neck, limbs, back, genitalia, tongue, buccal mucosa, nails, and scalp. LP comprises rare variants affecting the skin and the mucosa. Rare cutaneous LP includes linear LP (referring to blaschkoid and zosteriform distributions of lichenoid lesions), actinic LP, annular LP, atrophic LP, annular atrophic LP, lichen planopilaris (comprising Graham Little-Piccardi-Lassueur syndrome and frontal fibrosing alopecia), lichen planus pigmentosus, and lichen planus pemphigoides (see these terms). Rare mucosal LP includes vulvovaginal gingival syndrome and LP sialadenitis (see these terms).


Classification level: Group of disorders
  • Synonym(s):
    • Rare LP
  • Prevalence: Unknown
  • Inheritance: -
  • Age of onset: All ages
  • ICD-10: -
  • OMIM: -
  • UMLS: C5679638
  • MeSH: -
  • GARD: 12344
  • MedDRA: -

Detailed information

Clinical Outcome Assessment (COA)

  • Patient-Centered Outcome Measures (PCOMs)
  • English (2023) - PROQOLIDTM
ERN produced/endorsed by ERN(s)   FSMR produced/endorsed by FSMR(s)
The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.