Last reviewed: November 2017
Last updated: November  2017

Summary

Definition

History and exam

Key diagnostic factors

  • disc-shaped erythematous maculopapular scaly lesions
  • age 20 to 40 years
  • hx of UV light exposure
  • smoking hx

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
  • UV light exposure
  • smoking
  • female gender
  • non-specific skin injury

Diagnostic investigations

1st investigations to order

  • antinuclear antibodies, double-stranded (ds) DNA
  • FBC
  • ESR
  • urea and electrolytes
  • urinalysis
Full details

Treatment algorithm

ONGOING

Contributors

Authors VIEW ALL

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 holds shares in GSK to the value less than £12,000.

Peer reviewers VIEW 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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