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Nevos

Last reviewed: 3 Jun 2025
Last updated: 20 Nov 2024

Summary

Definition

History and exam

Key diagnostic factors

  • presença de fatores de risco
  • presença desde o nascimento
  • pápulas assimétricas, com bordas indistintas ou irregulares e de cores variadas com >5 mm de diâmetro
  • história de alteração na forma e na cor
  • assintomático (geralmente)
  • lesões múltiplas
  • mancha marrom plana
  • pápula em forma de domo
  • fundo marrom claro com pontos marrons mais escuros salpicados
  • pápula em forma de domo cinza-azulada
  • pápula central rosa a marrom com um anel branco despigmentado em volta
  • pápula marrom rosada
Full details

Risk factors

  • predisposição genética
  • exposição à radiação ultravioleta
  • pele clara
  • idade: crianças mais velhas e adultos jovens
Full details

Diagnostic tests

1st tests to order

  • dermatoscopia
Full details

Tests to consider

  • tecnologias de imagem não invasivas
  • fotografia de corpo inteiro
  • biópsia
Full details

Emerging tests

  • sequenciamento do genoma completo
  • ensaio de lesão pigmentada (ELP)

Treatment algorithm

ACUTE

clinicamente benigno

suspeita clínica de melanoma

Contributors

Authors

Jason B. Lee, MD
Jason B. Lee

Professor of Dermatology & Cutaneous Biology

Clinical Vice-Chair

Director of Dermatopathology Fellowship

Director of Pigmented Lesion Clinic

Thomas Jefferson University

Philadelphia

PA

Disclosures

JBL declares that he has no competing interests.

Acknowledgements

Dr Jason B. Lee would like to gratefully acknowledge Dr Laurel R. Schwartz, a previous contributor to this topic.

Disclosures

LRS declares that she has no competing interests.

Peer reviewers

Craig G. Burkhart, MD

Clinical Professor

Department of Medicine

Medical College of Ohio

Toledo

OH

Disclosures

CGB declares that he has no competing interests.

Mark Hurt, MD

Dermatologist

Cutaneous Pathology

WCP Laboratories

Missouri

MO

Disclosures

MH declares that he has no competing interests.

Veronique Bataille, MBBS

Consultant Dermatologist

West Herts NHS Trust and King's College London

London

UK

Disclosures

VB declares that she 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

Duffy K, Grossman D. The dysplastic nevus: from historical perspective to management in the modern era: part I. Historical, histologic, and clinical aspects. J Am Acad Dermatol. 2012 Jul;67(1):1.e1-16. Abstract

Duffy K, Grossman D. The dysplastic nevus: from historical perspective to management in the modern era. Part II. Molecular aspects and clinical management. J Am Acad Dermatol. 2012 Jul;67(1):19.e1-12. Abstract

Wernli KJ, Henrikson NB, Morrison CC, et al. Screening for skin cancer in adults: updated evidence report and systematic review for the US preventive services task force. JAMA. 2016 Jul 26;316(4):436-47.Full text  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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