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Pitiríase liquenoide

Última revisión: 18 Jun 2025
Última actualización: 10 May 2024

Resumen

Definición

Anamnesis y examen

Principales factores de diagnóstico

  • erupção cutânea aguda a subaguda recorrente
  • erupção cutânea não pruriginosa, generalizada e polimórfica
Todos los datos

Otros factores de diagnóstico

  • cicatrizes ou mudanças de pigmentação
  • imunossupressão
  • doença recente
  • história familiar de pitiríase liquenoide
  • cefaleia
  • mialgias/artralgias
  • mal-estar
  • queimação/prurido
  • insuficiência de múltiplos órgãos
Todos los datos

Factores de riesgo

  • da infância ao início da fase adulta
  • sexo masculino
  • vírus da imunodeficiência humana (HIV)
Todos los datos

Pruebas diagnósticas

Primeras pruebas diagnósticas para solicitar

  • dermatoscopia
  • biópsia de pele
Todos los datos

Pruebas diagnósticas que deben considerarse

  • títulos de antiestreptolisina
  • Antígeno do capsídeo viral IgM/IgG do vírus Epstein-Barr e anticorpo contra o antígeno nuclear
  • monoteste ou teste de anticorpos heterófilos
  • teste para o antígeno de superfície da hepatite B, anticorpo antissuperfície e IgM anti-core
  • anticorpo do vírus da hepatite C
  • Rastreamento para vírus da imunodeficiência humana (HIV)
  • reagina plasmática rápida
  • culturas faríngeas
  • teste de reação de Sabin-Feldman para toxoplasma, hemaglutinação/imunofluorescência indireta
  • velocidade de hemossedimentação
  • proteína C-reativa
  • lactato desidrogenase (LDH) sérico
  • contagem leucocitária
  • albumina sérica
Todos los datos

Algoritmo de tratamiento

En curso

doença leve a moderada

doença grave ou resistência ao tratamento

Colaboradores

Autores

Amy Musiek, MD

Professor of Dermatology

Division of Dermatology

Washington University School of Medicine in St. Louis

St. Louis

MO

Divulgaciones

AM is a paid lecturer in cutaneous T-cell lymphoma for Dermatology Week, is the author of the UpToDate article on Pityriasis lichenoides chronica, and is an investigator for multiple industry sponsored studies all unrelated to pityriasis lichenoides.

Agradecimientos

Dr Amy Musiek would like to gratefully acknowledge Dr Amer Khachemoune and Dr Marianna Blyumin-Karasik, previous contributors to this topic.

Disclosures

AK and MB-K declare that they have no competing interests.

Peer reviewers

Andrew D. Lee, MD

Resident

Department of Dermatology

Wake Forest University School of Medicine

Winston-Salem

NC

Disclosures

ADL declares that he has no competing interests.

Abdulhafez Selim, MD

Assistant Professor

King Fahd University of Petroleum and Minerals

Dhahran

Saudi Arabia

Disclosures

AS declares that he has no competing interests.

References

Our in-house evidence and editorial teams collaborate with international expert contributors and peer reviewers to ensure that we provide access to the most clinically relevant information possible.

Key articles

Khachemoune A, Blyumin ML. Pityriasis lichenoides: pathophysiology, classification, and treatment review. Am J Clin Dermatol. 2007;8(1):29-36. Abstract

Bowers S, Warshaw EM. Pityriasis lichenoides and its subtypes. J Am Acad Dermatol. 2006 Oct;55(4):557-72; quiz 573-6. Abstract

Bellinato F, Maurelli M, Gisondi P, et al. A systematic review of treatments for pityriasis lichenoides. J Eur Acad Dermatol Venereol. 2019 Nov;33(11):2039-49. Abstract

Jung F, Sibbald C, Bohdanowicz M, et al. Systematic review of the efficacies and adverse effects of treatments for pityriasis lichenoides. Br J Dermatol. 2020 Dec;183(6):1026-32. Abstract

Reference articles

A full list of sources referenced in this topic is available to users with access to all of BMJ Best Practice.

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