Diagnosis and treatment of breast cancer metastasis to thyroid: a case report and literature review By TaiXu Jiang YueNan Zheng HongShi Shi Liang He MoFei Wang May 25, 2026 0 min Frontiers In Surgery Share Summary Takeaways Listen Insight Report Clinical Scorecard Quiz Poll Top Institutions Objective:To describe a case of breast cancer metastasis to the thyroid, a rare occurrence often misdiagnosed in clinical practice.Key Findings:Thyroid metastasis from breast cancer is rare, accounting for only 7.8% of thyroid metastatic cancers.The patient had no symptoms related to the thyroid mass.Fine-needle aspiration biopsy (FNAB) is crucial for diagnosis, but the patient refused this procedure.Interpretation:Limitations:The case report is based on a single patient, limiting generalizability.The diagnosis relied on postoperative findings due to the patient's refusal of FNAB.Conclusion:Clinicians should consider thyroid malignancy in patients with a history of breast cancer presenting with new thyroid nodules.
