Incidental thyroid carcinoma in surgically treated multinodular goiter: a retrospective study - Report - MDSpire

Incidental thyroid carcinoma in surgically treated multinodular goiter: a retrospective study

  • By

  • G. Pavone

  • E. Lamanna

  • M. Pacilli

  • E. Khoury

  • A. Ambrosi

  • N. Tartaglia

  • July 2, 2026

  • 0 min

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Clinical Report: Unexpected thyroid cancer findings in patients with multinodular goiter

Overview

This study reports a 14.4% incidence of incidental thyroid carcinoma in patients undergoing surgery for multinodular goiter. Papillary thyroid carcinoma was the most common subtype.

Background

Thyroid cancer is the most common malignancy of the endocrine system, with multinodular goiter being a frequently encountered condition in clinical practice. While traditionally viewed as benign, the potential for thyroid carcinoma in multinodular goiter cases necessitates careful evaluation, as the incidence of malignancy can vary significantly across different populations.

Data Highlights

CharacteristicValue
Total Patients223
Incidental Carcinoma Cases32
Incidence of Carcinoma14.4%
Female Patients24 (75%)
Male Patients8 (25%)
Mean Age with Carcinoma49.4 ± 16.7 years
Mean Age without Carcinoma56.2 ± 13.1 years

Key Findings

  • Incidental thyroid carcinoma was found in 14.4% of patients undergoing surgery for multinodular goiter.
  • 75% of the patients with incidental carcinoma were female, with a female-to-male ratio of 3:1.
  • The most common histological subtype was papillary thyroid carcinoma, accounting for 78.1% of cases.
  • Patients diagnosed with carcinoma were significantly younger than those without malignancy (mean age 49.4 vs. 56.2 years).
  • Logistic regression indicated that increasing age was associated with a reduced probability of malignancy (OR=0.963).

Clinical Implications

The findings indicate that incidental thyroid carcinoma is a notable occurrence in patients with multinodular goiter undergoing surgery.

Conclusion

Incidental thyroid carcinoma is a relatively frequent finding in surgical cases of multinodular goiter, predominantly presenting as papillary carcinoma.

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  4. 2023 European Thyroid Association Clinical Practice Guidelines for thyroid nodule management
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  6. INCIDENTAL THYROID CARCINOMA IN SURGICALLY TREATED MULTINODULAR GOITER: A RETROSPECTIVE STUDY
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  8. What recent data show about “unexpected” cancer at surgery for presumed benign multinodular goiter
  9. 2023 European Thyroid Association Clinical Practice Guidelines for thyroid nodule management - ScienceDirect
  10. Diagnosing and management of thyroid nodules and goiter – current perspectives | Endocrine | Springer Nature Link
  11. Occult Thyroid Carcinoma Incidence in Multinodular Goiter Experience of a Medium-Volume Center in Romania
  12. Executive Summary of the 2025 American Thyroid Association Management Guidelines for Adult Patients with Differentiated Thyroid Cancer
  13. Incidental Thyroid Nodules on Computed Tomography: A Systematic Review and Meta-Analysis Examining Prevalence, Follow-Up, and Risk of Malignancy - Zhixing Song, Christopher Wu, Julia Kasmirski, Andrea Gillis, Jessica Fazendin, Brenessa Lindeman, Herbert Chen, 2024

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