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Annular atrophic lichen planus

L Requena1, M Olivares, E Piqué

  • 1Department of Dermatology, Fundación Jiménez Díaz, Clínica Ntra. Sra. de la Concepción, Universidad Autónoma, Madrid, Spain.

Dermatology (Basel, Switzerland)
|January 1, 1994
PubMed
Summary
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Annular atrophic lichen planus, a rare variant, presents with ring-like lesions due to peripheral expansion and central clearing. Histology reveals lichen planus at the border and resolved areas centrally, with destroyed elastic fibers causing atrophy.

Area of Science:

  • Dermatology
  • Pathology

Background:

  • Lichen planus is a common inflammatory condition affecting skin and mucous membranes.
  • Annular configurations are rarely reported in lichen planus variants.

Observation:

  • The second documented case of annular atrophic lichen planus is presented.
  • Lesions exhibited peripheral enlargement and central clearing, forming a characteristic ring shape.
  • Histopathological examination confirmed lichen planus at the active lesion border and resolved lichen planus centrally.

Findings:

  • Elastic fiber destruction in the papillary dermis was observed in both the active border and central areas.
  • This elastolysis contributes to the atrophic appearance of the lesions.
  • The condition represents a localized acquired cutis laxa secondary to elastolytic activity.

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Implications:

  • This case expands the understanding of rare lichen planus variants.
  • It highlights the role of elastolysis in the pathogenesis of atrophic dermatoses.
  • Further research into elastolytic mechanisms in inflammatory skin conditions is warranted.