A GOOD IMITATOR OF MEDULLARY THYROID CARCINOMA: THYROID METASTASIS FROM A NEUROENDOCRINE TUMOR
2018
Objective: To describe the diagnosis of a patient with thyroid metastasis from a bronchial carcinoid tumor, initially mistaken for a medullary thyroid carcinoma. Methods: We present the clinical, laboratory and imaging findings, along with a literature review. Results: Typical bronchial carcinoids are well differentiated neoplasms, which usually have a good prognosis. However, 15% of the cases may metastasize. This report describes the case of a 36-year-old woman with a history of a surgically removed bronchial carcinoid tumor, which did not relapse after a 4-year follow-up. Nine years later, the patient consulted for a thyroid nodule, and the anatomic pathology report showed a diagnosis of medullary thyroid carcinoma. Subsequently, immunohistochemistry showed that it was a thyroid metastasis from the bronchial carcinoid tumor, which completely changed the treatment and prognosis. Conclusion: This case highlights the importance of adequate surgery, as well as a detailed review of the past medical history,...
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