Last reviewed:December 2019
Last updated:December  2019

Summary

Definition

History and exam

Key diagnostic factors

  • disk-shaped erythematous maculopapular scaly lesions
  • age 20 to 40 years
  • history¬†of ultraviolet light exposure
  • smoking history

Other diagnostic factors

  • absence of pruritus and/or pain
  • telangiectasia, hyperpigmentation, and/or hypopigmentation
  • permanent scarring alopecia
  • systemic features (arthritis, pleuritis, pericarditis, seizures, psychosis)

Risk factors

  • age 20 to 40 years
  • ultraviolet¬†light exposure
  • smoking
  • female sex
  • nonspecific skin injury

Diagnostic investigations

Treatment algorithm

Contributors

Consultant Rheumatologist

Wishaw General Hospital

Wishaw

UK

Disclosures

MMC declares that she has no competing interests.

Consultant Physician and Rheumatologist

Department of Rheumatology

Glasgow Royal Infirmary

Glasgow

UK

Disclosures

RM has declared a stock holding in GSK.

Peer reviewersVIEW ALL

Professor of Medicine (Dermatology)

University of Louisville

Louisville

KY

Disclosures

JPC declares that he has no competing interests.

Consultant Dermatologist

Department of Dermatology

Leeds General Infirmary

Leeds

UK

Disclosures

MG declares that he has no competing interests.

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