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Thyroid cancer

Last reviewed: 30 Mar 2025
Last updated: 24 Jan 2025

Summary

Definition

History and exam

Key diagnostic factors

  • palpable thyroid nodule
  • female sex
  • history of head and neck irradiation
Full details

Other diagnostic factors

  • extremes of age
  • family history of thyroid cancer
  • hoarseness
  • dyspnea
  • dysphagia
  • tracheal deviation
  • cervical lymphadenopathy
  • rapid neck enlargement
Full details

Risk factors

  • head and neck irradiation
  • female sex
  • family history of thyroid cancer
Full details

Diagnostic investigations

1st investigations to order

  • TSH
  • thyroid/neck ultrasound
  • fine-needle aspiration (FNA)
Full details

Investigations to consider

  • molecular testing of cytology specimens
  • free T4
  • free T3
  • laryngoscopy
  • I-123 thyroid scan and uptake
  • core biopsy
  • CT neck
  • serum calcitonin
  • genetic testing for familial syndromes
  • serum thyroglobulin
Full details

Emerging tests

  • translaryngeal ultrasound
  • sentinel node biopsy

Treatment algorithm

ONGOING

papillary, follicular, or oncocytic

anaplastic

medullary

Contributors

Authors

Rajiv Datta, MD, FACS, FRCS, FICS
Rajiv Datta

Chairman

Department of Surgery

Professor Of Surgery, Icahn School of Medicine at Mount Sinai

Chief

Division of Surgical Oncology

Chief

Division of Head and Neck Surgery

Mount Sinai South Nassau Hospital

Oceanside

NY

Disclosures

RD declares that he has no competing interests.

Peer reviewers

Rosemarie Metzger, MD, MPH, FACS

Associate Professor of Surgery, Endocrine Surgery Division

Banner - University Medical Center

Phoenix

AZ

Disclosures

RM declares that she has no competing interests.

Lindsay Bischoff, MD

Associate Professor

Medical Director Vanderbilt Thyroid Center

Vanderbilt University Medical Center

Nashville

TN

Disclosures

LB declares that she has no competing interests.

F. Fausto Palazzo, MS, FRCS

Consultant Endocrine Surgeon

Hammersmith & Charing Cross Hospitals

Clinical Lead for Endocrine Surgery

Honorary Senior Lecturer

Imperial College

London

UK

Disclosures

FFP 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

Haugen BR, Alexander EK, Bible KC, et al; American Thyroid Association Guidelines Task Force on Thyroid Nodules and Differentiated Thyroid Cancer. 2015 American Thyroid Association management guidelines for adult patients with thyroid nodules and differentiated thyroid cancer. Thyroid. 2016 Jan;26(1):1-133.Full text  Abstract

Wells SA Jr, Asa SL, Dralle H, et al. Revised American Thyroid Association guidelines for the management of medullary thyroid carcinoma. Thyroid. 2015 Jun;25(6):567-610.Full text  Abstract

Gharib H, Papini E, Garber JR, et al. American Association of Clinical Endocrinologists, American College of Endocrinology, and Associazione Medici Endocrinologi medical guidelines for clinical practice for the diagnosis and management of thyroid nodules - 2016 update. Endocr Pract. 2016 May;22(5):622-39.Full text  Abstract

National Comprehensive Cancer Network. NCCN clinical practice guidelines in oncology: thyroid carcinoma [internet publication].​Full text

European Society for Medical Oncology. Clinical practice guidelines - thyroid cancer. 2019 [internet publication].Full text

Reference articles

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

    • Benign thyroid nodule
    More Differentials
  • Guidelines

    • NCCN clinical practice guidelines in oncology: thyroid carcinoma
    • 2023 European Thyroid Association clinical practice guidelines for thyroid nodule management
    More Guidelines
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