Last reviewed: 25 Oct 2020
Last updated: 04 Mar 2020

Summary

Definition

History and exam

Key diagnostic factors

  • adolescent and young adult age
  • history of living in area of high temperature and humidity
  • susceptible skin characteristics
  • positive drug history
  • lack of pruritus or pain
  • dyspigmentation
  • macules or patches
  • seborrheic distribution
  • fine overlying scale

Other diagnostic factors

  • yellow fluorescence under Wood lamp exam

Risk factors

  • high ambient temperature and humidity
  • adolescent and young adult age
  • hyperhidrosis
  • systemic corticosteroid or other immunosuppressant use
  • participation in athletics
  • greasy skin
  • family history¬†of PV
  • malnutrition
  • use of oral contraceptives
  • HIV infection and other immunosuppressive conditions
  • use of occlusive ointments or creams

Diagnostic investigations

Treatment algorithm

Contributors

Brian L. Swick

Clinical Professor

Departments of Dermatology and Pathology

University of Iowa

Iowa City

IA

Disclosures

BLS declares that he has no competing interests.

Peer reviewersVIEW ALL

Private Practice of Dermatology

Coralville

IA

Disclosures

HW declares that he has no competing interests.

Consultant Paediatrician

Heartlands Hospital

Birmingham

UK

Disclosures

HG declares that she has no competing interests.

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