Colon Cancer with Thyroid Metastasis – A Case Report

Abstract

Introduction: Metastasis in the thyroid itself, is unusual, represents 1.5-7.5% of malignant thyroid lesions and the original site of the colon is rare, around 0.1% incidence. The objective is to report the case of a patient diagnosed with colorectal cancer which progressed to thyroid disease.

Case Report: It is a 62-year-old male patient who was being followed up at the Cancer Hospital of Londrina due to the resected colon neoplasm, which evolved with disease recurrence for the liver and lung and was controlled with systemic chemotherapy. It evolved with progression to thyroid and it was opted for diagnostic surgical resection.

Conclusion: In the case demonstrated, it is a rare presentation of colon cancer metastasis and there is no current literature which would be a better therapeutic approach; surgery or palliative systemic chemotherapy. In this scenario, the importance of reporting cases little described in the literature may help in the decision of future conduct.