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Melanoma

Last reviewed: 12 Dec 2025
Last updated: 07 Feb 2025

Summary

Definition

History and exam

Key diagnostic factors

  • lesão pigmentada alterada (sinais do ABCDE)
  • lesão melanocítica que não se assemelha a nevos melanocíticos circundantes ("patinho feio")
  • sangramento espontâneo ou ulceração de uma lesão pigmentada
  • sintomas constitucionais
  • sinal ungueal: melanoníquia estriada persistente em uma única unha
  • sinal ungueal: sinal de Hutchinson
  • achados dermatoscópicos atípicos
  • linfadenopatia fixa
  • metástases em trânsito
Full details

Risk factors

  • exposição ao sol
  • história familiar de melanoma
  • história pessoal de melanoma
  • história pessoal de câncer de pele (inclusive danos actínicos)
  • história de nevos atípicos
  • Tipo de pele I ou II (pele branca) de Fitzpatrick
  • cabelo ruivo ou louro
  • alta densidade de sardas
  • uso de câmaras de bronzeamento
  • olhos claros
  • números elevados de nevos melanocíticos com aparência benigna
  • nevos congênitos grandes
  • imunossupressão
  • xeroderma pigmentoso
Full details

Diagnostic tests

1st tests to order

  • dermatoscopia
  • biópsia de pele
  • imuno-histoquímica
Full details

Tests to consider

  • biópsia do linfonodo sentinela
  • tomografia computadorizada (TC) do tórax/abdome/pelve
  • PET do corpo inteiro
  • imagens do cérebro (tomografia computadorizada [TC] ou ressonância nuclear magnética [RNM])
  • análise mutacional em BRAF
  • Análise mutacional de NRAS
  • lactato desidrogenase (LDH) sérica
Full details

Emerging tests

  • Análise mutacional de CDKN2A

Treatment algorithm

ACUTE

melanoma em estádio inicial (melanoma in situ, estádio I, estádio II)

melanoma em estádio III com linfonodos sentinelas negativos

melanoma em estádio III com linfonodos sentinelas positivos

melanoma em estágio III com linfonodos clinicamente positivos: ressecável

melanoma em estádio III com metástases satélite/em trânsito: doença limitada ressecável

melanoma em estádio III com metástases satélite/em trânsito: doença limítrofe ressecável ou irressecável

melanoma metastático em estádio IV

Contributors

Authors

Yin Wu, MRCP(UK), PhD

Wellcome Trust Clinical Research Career Development Fellow and Honorary Consultant Medical Oncologist

Peter Gorer Department of Immunobiology

King's College London

Department of Medical Oncology

Guy's and St Thomas' NHS Foundation Trust

London

UK

Disclosures

YW is funded by the Wellcome Trust, and consults for PersonGen Therapeutics, and Biotherapeutics.

Amanda Fitzpatrick, MRCP(UK), PhD

Medical Oncologist and Honorary Senior Lecturer

Guy's Cancer Centre

King's College

London

UK

Disclosures

AF declares she has no competing interests.

Pablo Fernandez-Peñas, MD, PhD, FACD

Professor of Dermatology

The University of Sydney

Sydney

Australia

Disclosures

PF-P declares that he has no competing interests with the topic Melanoma. PF-P has advisory roles with Amgen, Boehringer Ingelheim, Bristol Meyers Squibb, Leo, Novartis, Lilly, Abbvie, Janssen, Celgene (psoriasis, atopic eczema, hidradenitis), Roche, Merck Sharp & Dohme, Sun Pharmaceuticals, Novartis, and Sanofi. He has been paid to do research for Incyte Europe Sarl, and clinical trials for Arena, Akaal Pharma, Xoma, Kyowa Hakko Kirin, AbbVie, OncoSec, Lilly, CSL Behring, Boehringer Ingelheim, Pfizer, mRage, Eisai, Jiansu Hengrui, Bristol-Myers Squibb, Sun Pharma, Novartis, Roche, Galderma, Regeneron, UCB, GlaxoSmithKline, and Amgen.

Acknowledgements

Dr Yin Wu, Dr Amanda Fitzpatrick, and Dr Pablo Fernandez-Peñas would like to gratefully acknowledge Dr Prachi Bhave, Dr Robyn P.M. Saw, Dr Sophie E. Papa, Dr Alexander M. Menzies, Dr Philip Friedlander, Dr Hobart W. Walling, and Dr Brian L. Swick, previous contributors to this topic.

Disclosures

PB has received honoraria from Bristol-Myers Squibb, MSD and Novartis and sponsorship from MSD and Novartis. RPMS is on the advisory board for Novartis, MSD, and Qbiotics and has previously been on the advisory board for Amgen; he has received honoraria from BMS and Novartis. SEP has received honoraria from BMS, MSD, and Novartis to attend conferences; she has participated in advisory boards for BMS, MSD, Amgen, Roche, and GSK. AMM has received honoraria from Novartis and BMS; he is on the advisory boards of MSD and Chugai. PF is a consultant for Genentech. HWW and BLS declare that they have no competing interests.

Peer reviewers

David Cassarino, MD, PhD

Assistant Professor

Department of Pathology and Laboratory Medicine

University of California

Los Angeles

CA

Disclosures

DC declares that he has no competing interests.

James DeBloom, MD

Dermatologist/Dermatologic Surgeon

President of the South Carolina Skin Cancer Center

Greenville

SC

Disclosures

JB declares that he has no competing interests.

Mai Brooks, MD, FACS

Associate Director

JCCC Women's Cancers Program Area

Jonsson Comprehensive Cancer Center at UCLA

Los Angeles

CA

Disclosures

MB declares that she has no competing interests.

Karol Sikora, MA, MBBCh, PhD, FRCR, FRCP, FFPM

Medical Director

CancerPartnersUK

London

UK

Disclosures

KS declares that he has no competing interests.

Peer reviewer acknowledgements

BMJ Best Practice topics are updated on a rolling basis in line with developments in evidence and guidance. The peer reviewers listed here have reviewed the content at least once during the history of the topic.

Disclosures

Peer reviewer affiliations and disclosures pertain to the time of the review.

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

National Comprehensive Cancer Network. NCCN clinical practice guidelines in oncology: melanoma - cutaneous [internet publication].Full text

National Institute for Health and Care Excellence. Melanoma: assessment and management. Jul 2022 [internet publication].Full text

Seth R, Agarwala SS, Messersmith H, et al. Systemic therapy for melanoma: ASCO guideline update. J Clin Oncol. 2023 Oct 20;41(30):4794-820.Full text  Abstract

Michielin O, van Akkooi ACJ, Ascierto PA, et al. Cutaneous melanoma: ESMO clinical practice guidelines for diagnosis, treatment and follow-up. Ann Oncol. 2019 Dec 1;30(12):1884-901.Full text  Abstract

Vogelbaum MA, Brown PD, Messersmith H, et al. Treatment for brain metastases: ASCO-SNO-ASTRO guideline. J Clin Oncol. 2022 Feb 10;40(5):492-516.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.
  • Melanoma images
  • Differentials

    • Nevos melanocíticos benignos/displásicos
    • Ceratose seborreica
    • Carcinoma basocelular pigmentado
    More Differentials
  • Guidelines

    • NCCN clinical practice guidelines in oncology: melanoma - cutaneous
    • NCCN clinical practice guidelines in oncology: management of immunotherapy-related toxicities
    More Guidelines
  • Folhetos informativos para os pacientes

    Como tomar sol de forma segura

    Câncer de pele (melanoma): o que é?

    Mais Folhetos informativos para os pacientes
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