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Doença de Crohn

Last reviewed: 12 Dec 2025
Last updated: 05 Dec 2025

Summary

Definition

History and exam

Key diagnostic factors

  • presença de fatores de risco
  • dor abdominal
  • diarreia prolongada
  • lesões perianais
Full details

Other diagnostic factors

  • obstrução intestinal
  • sangue nas fezes
  • fadiga
  • desconforto abdominal
  • perda de peso
  • febre
  • lesões orais
  • massa abdominal
  • manifestações extraintestinais (por exemplo, eritema nodoso ou pioderma gangrenoso)
Full details

Risk factors

  • etnia branca
  • Ascendência judaica asquenaze
  • idade de 15-40 ou 50-60 anos
  • história familiar de DC
  • uso de antibióticos
  • tabagismo
  • dieta com alto teor de açúcar refinado
  • dieta com baixo teor de fibras
  • dieta com alto teor de alimentos ultraprocessados
  • uso de pílula contraceptiva oral
  • não amamentados
  • uso de anti-inflamatórios não esteroidais (AINEs)
Full details

Diagnostic tests

1st tests to order

  • Hemograma completo
  • perfil de ferro (ferro sérico, ferritina sérica, capacidade total de ligação do ferro [TIBC], saturação da transferrina)
  • vitamina B12 sérica
  • folato sérico
  • perfil metabólico completo (CMP)
  • Proteína C-reativa e velocidade de hemossedimentação (VHS)
  • exame de fezes
  • sorologia para Yersinia enterocolitica
  • radiografia abdominal simples
  • RNM de abdome/pelve
  • tomografia computadorizada (TC) abdominal
Full details

Tests to consider

  • ultrassonografia abdominal e pélvica
  • ileocolonoscopia
  • biópsia tecidual
  • endoscopia digestiva alta
  • endoscopia por cápsula sem fio
  • calprotectina fecal
Full details

Emerging tests

  • marcadores sorológicos:

Treatment algorithm

ACUTE

doença ileocecal não fistulizante com <100 cm do intestino afetado: apresentação inicial ou recidiva

doença colônica não fistulizante: apresentação inicial ou recidiva

doença do intestino delgado extensa (>100 cm do intestino afetado) não fistulizante: apresentação inicial ou recidiva

doença do trato gastrointestinal superior (doença esofágica e/ou gastroduodenal) não fistulizante: apresentação inicial ou recidiva

doença perianal ou fistulizante: apresentação inicial ou recidiva

ONGOING

em remissão

Contributors

Authors

Lucy Charlotte Hicks, MBBS, PhD, FHEA, MRCP

Consultant Gastroenterologist

Department of Gastroenterology

St Mary's Hospital

Imperial College Healthcare NHS Trust

Honorary Senior Clinical Lecturer

Imperial College

London

UK

Disclosures

LCH has received costs for travel and accommodation from Takeda.

Georgia Woodfield, MBChB, MSc, PhD, MRCP

Consultant Gastroenterologist

Department of Gastroenterology

Royal Free Hospital

Royal Free London NHS Foundation Trust

London

UK

Disclosures

GW declares that she has no competing interests.

Acknowledgements

Dr Georgia Woodfield and Dr Lucy Charlotte Hicks would like to gratefully acknowledge Mr George Reese, Dr Pranav H. Patel, Dr Philip J. Smith, Dr Charlotte Ford, Dr Wissam Bleibel, Dr Bishal Mainali, Dr Chandrashekhar Thukral, and Dr Mark A. Peppercorn, the previous contributors to this topic.

Disclosures

GR is an author of a number of references cited in this topic. PHP, PJS, CF, WB, BM, CT, and MAP declare that they have no competing interests.

Peer reviewers

Kiron M. Das, MD, PhD, FACP, FRCP

Chief of Gastroenterology & Hepatology

Professor of Medicine

Director of Crohn's & Colitis Center of New Jersey

New Brunswick

NJ

Disclosures

KMD declares that he has no competing interests.

John Mansfield, MA, MD, FRCP

Consultant Gastroenterologist and Senior Lecturer

Royal Victoria Infirmary

Newcastle upon Tyne Hospitals NHS Foundation Trust and Newcastle University

Newcastle upon Tyne

UK

Disclosures

JM 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

Ooi CJ, Makharia GK, Hilmi I, et al. Asia Pacific consensus statements on Crohn's disease. Part 1: definition, diagnosis, and epidemiology. J Gastroenterol Hepatol. 2016 Jan;31(1):45-55.Full text  Abstract

Lichtenstein GR, Loftus EV, Isaacs KL, et al. ACG clinical guideline: management of Crohn's disease in adults. Am J Gastroenterol. 2018 Apr;113(4):481-517.Full text  Abstract

Gomollón F, Dignass A, Annese V, et al. 3rd European evidence-based consensus on the diagnosis and management of Crohn's disease 2016: Part 1: diagnosis and medical management. J Crohns Colitis. 2017 Jan;11(1):3-25.Full text  Abstract

Torres J, Bonovas S, Doherty G, et al. ECCO guidelines on therapeutics in Crohn's disease: medical treatment. J Crohns Colitis. 2020 Jan 1;14(1):4-22.Full text  Abstract

Adamina M, Bonovas S, Raine T, et al. ECCO guidelines on therapeutics in Crohn's disease: surgical treatment. J Crohns Colitis. 2020 Feb 10;14(2):155-68.Full text  Abstract

Feuerstein JD, Ho EY, Shmidt E, et al. AGA clinical practice guidelines on the medical management of moderate to severe luminal and perianal fistulizing Crohn's disease. Gastroenterology. 2021 Jun;160(7):2496-508.Full text  Abstract

Gionchetti P, Dignass A, Danese S, et al. 3rd European evidence-based consensus on the diagnosis and management of Crohn’s disease 2016: Part 2: surgical management and special situations. J Crohns Colitis. 2017 Feb;11(2):135-49.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.
  • Doença de Crohn images
  • Differentials

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    • Colite infecciosa
    • Colite pseudomembranosa
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  • Guidelines

    • BSG consensus guidelines on the management of inflammatory bowel disease in adults
    • Management of Crohn's disease in adults
    More Guidelines
  • Patient information

    Doença de Crohn: quais são as opções de tratamento?

    Doença de Crohn: o que é?

    More Patient information
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