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Síndrome mielodisplásica

Last reviewed: 10 Feb 2026
Last updated: 07 Nov 2025

Summary

Definition

History and exam

Key diagnostic factors

  • idade avançada
  • fadiga
  • intolerância ao exercício
  • palidez
  • hematomas ou sangramentos
  • quimioterapia e/ou radioterapia prévias
  • doença congênita
  • infecções bacterianas
Full details

Other diagnostic factors

  • presença de fatores de risco
  • doenças autoimunes
  • esplenomegalia
  • hepatomegalia
  • linfadenopatia
Full details

Risk factors

  • idade >70 anos
  • quimioterapia prévia
  • radioterapia anterior
  • transplante autólogo de células-tronco hematopoiéticas prévio
  • doenças congênitas
  • exposição ao tabaco
  • exposição ao benzeno
  • anemia aplásica
  • hemoglobinúria paroxística noturna (HPN)
Full details

Diagnostic tests

1st tests to order

  • Hemograma completo com diferencial
  • esfregaço de sangue periférico
  • contagem de reticulócitos
  • folato eritrocitário
  • vitamina B12 sérica
  • perfil de ferro
  • aspiração da medula óssea com coloração para ferro
  • punção por agulha grossa (core biopsy) da medula óssea
  • teste genético
Full details

Tests to consider

  • sorologia viral
  • eritropoetina sérica
  • lactato desidrogenase
  • tipagem HLA (antígeno leucocitário humano)
  • citometria de fluxo
Full details

Treatment algorithm

ACUTE

doença de baixo risco: assintomático

doença de baixo risco: SMD-5q (del(5q) ± uma outra anormalidade citogenética, exceto aquelas que envolvem o cromossomo 7) com anemia sintomática

doença de baixo risco: SMD-SF3B1 (sem del(5q) ± outras anormalidades citogenéticas com sideroblastos em anel ≥15% [ou ≥5% com mutação SF3B1]) com anemia sintomática

doença de baixo risco: sem del(5q) com sideroblastos em anel <15% (ou <5% com mutação SF3B1) com anemia sintomática

doença de baixo risco: com trombocitopenia ou neutropenia clinicamente relevante (sem anemia sintomática)

doença de alto risco: candidato a transplante

doença de alto risco: não candidato a transplante

Contributors

Authors

Vijaya Raj Bhatt, MBBS, MS

​Professor

Section Leader, Malignant Hematology

University of Nebraska Medical Center Division of Hematology-Oncology

Nebraska

NE

Disclosures

VRB has participated in a Safety Monitoring Committee for Protagonist Therapeutics and has served as an Associate Editor for the journal Current Problems in Cancer, and as a member of the National Comprehensive Cancer Network Acute Myeloid Leukemia panel. He has received consulting fees from Taiho, Sanofi, Imugene, Genentech, Incyte, Servier Pharmaceuticals, and AbbVie; research funding (institutional) from Cynata Therapeutics, MEI Pharma, Actinium Pharmaceutical, Sanofi, AbbVie, Pfizer, Incyte, Jazz, and NMDP; and drug support (institutional) from Chimerix for a trial.

Prajwal Dhakal, MBBS

​Clinical Assistant Professor of Internal Medicine-Hematology, Oncology, and Blood and Marrow Transplantation

University of Iowa

Iowa City

IA

Disclosures

PD has received honoraria from the Aplastic Anemia and MDS International Foundation, and Iowa Oncology Society. PD has received consulting fees from AbbVie, Genentech, and Stemline Therapeutics.

Acknowledgements

Dr Vijaya Raj Bhatt and Dr Prajwal Dhakal would like to gratefully acknowledge Professor Apar Kishor Ganti and Associate Professor Alissa Marr, previous contributors to this topic.

Divulgaciones

AKG has received research support from Amgen, Apexigen, Bristol-Myers Squibb, Janssen, Merck, New Link Genetics, Pfizer, and Takeda Oncology. AKG has been reimbursed for consulting work for AbbVie and Genentech. None of the grants or payments relate to work involving myelodysplastic syndrome. AM declares that she has no competing interests.

Revisores por pares

David P. Steensma, MD, FACP

Associate Professor of Medicine (Hematology) and Oncology

Division of Hematology

Department of Medicine

Mayo Clinic

Rochester

MN

Divulgaciones

DPS declares that he has no competing interests.

Adrian C. Newland, BA, MB, BCh, MA, FRCP, FRCPath

Professor of Haematology

Queen Mary University

London

UK

Divulgaciones

ACN declares that he has no competing interests.

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Referencias

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Artículos principales

Killick SB, Wiseman DH, Quek L, et al. British Society for Haematology guidelines for the diagnosis and evaluation of prognosis of adult myelodysplastic syndromes. Br J Haematol. 2021 Jul;194(2):282-93.Texto completo  Resumen

Killick SB, Ingram W, Culligan D, et al. British Society for Haematology guidelines for the management of adult myelodysplastic syndromes. Br J Haematol. 2021 Jul;194(2):267-81.Texto completo  Resumen

National Comprehensive Cancer Network. NCCN clinical practice guidelines in oncology: myelodysplastic syndromes [internet publication].Texto completo

Fenaux P, Haase D, Santini V, et al; ESMO Guidelines Committee. Myelodysplastic syndromes: ESMO clinical practice guidelines for diagnosis, treatment and follow-up. Ann Oncol. 2021 Feb;32(2):142-56.Texto completo  Resumen

Artículos de referencia

Una lista completa de las fuentes a las que se hace referencia en este tema está disponible para los usuarios con acceso a todo BMJ Best Practice.
  • Síndrome mielodisplásica images
  • Diferenciales

    • Anemia aplásica
    • Infecção pelo vírus da imunodeficiência humana (HIV)
    • Outras infecções virais (por exemplo, parvovírus, CMV ou hepatite)
    Más Diferenciales
  • Guías de práctica clínica

    • NCCN clinical practice guidelines in oncology: myelodysplastic syndromes
    • Guidelines for the diagnosis and treatment of myelodysplastic neoplasias and chronic myelomonocytic leukemia (11th update)
    Más Guías de práctica clínica
  • Calculadoras

    International Prognostic Scoring System revisado (IPSS-R) para síndrome mielodisplásica

    Más Calculadoras
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