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Turkish Journal of Cancer
2008, Volume 38, Number 3, Page(s) 142-144
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A metastasis of colorectal cancer to the thyroid gland which has also papillary thyroid cancer: A case report
SAMET YALÇIN1, EKREM ÜNAL1, SANCAR BAYAR1, BÜLENT YALÇIN2, ABDULLAH BÜYÜKÇELİK2, AYLİN OKÇU HEPER2, HİKMET AKGÜL1
1Ankara University, Faculty of Medicine, Departments of General Surgery, Ankara-Turkey
2Ankara University, Faculty of Medicine, Departments of Medical Oncology, Ankara-Turkey
3Ankara University, Faculty of Medicine, Departments of Pathology, Ankara-Turkey

A fifty-years old man underwent Miles’ operation (abdomino- perineal resection) for a rectal carcinoma seven years ago. The follow-up examinations had been normal for seven years. A new thyroid nodule developed, and serum carcinoembryonic antigen level was found to be elevated during the last follow-up examination. Total thyroidectomy was performed since the fine-needle aspiration from the nodule in thyroid gland revealed malignant cells, but it was difficult to distinguish metastatic thyroid cancer from this primary one. Pathological examination of thyroidectomy specimen revealed a metastasis to both lobes of thyroid gland, and the nodule in thyroid gland was differentiated papillary carcinoma of thyroid. The present patient is the first example of colorectal carcinoma metastasizing to the thyroid gland which has also differentiated papillary carcinoma. [Turk J Cancer 2008;38(3):142-144]

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