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KMID : 1011720230160020190
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International Journal of Thyroidology
2023 Volume.16 No. 2 p.190 ~ p.194
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A Case of Metastatic Prostate Cancer to the Thyroid Gland with Features of Anaplastic Thyroid Cancer
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Lee So-Yeon
Kim Yeong-Joon
Oh Sun-Ju
Lee Hyoung-Shin
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Abstract
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Prostate cancer is one of the most frequent malignancies in men, and it has metastasis mainly to bones and lungs. Metastasis to cervical region is rare, and thyroid gland is one of the rarest organs with only few reports. In this case, we discuss a rare case of metastatic prostate cancer to thyroid gland and cervical lymph nodes, showing features similar to those of anaplastic thyroid cancer. A 73-year-old man with a history of prostate cancer was referred to our hospital with neck mass suggestive of anaplastic thyroid cancer, detected by fine-needle aspiration. Further examinations, including core needle biopsy, were done and it was confirmed as metastasis of prostate cancer. We focused on shortcomings of fine-needle aspiration and advantages of core-needle biopsy to avoid misdiagnosis. In addition, before diagnosis of head and neck cancer, patient’s history of other carcinomas must always be considered during differential diagnosis of metastatic lesions.
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KEYWORD
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Metastatic prostate cancer, Core needle biopsy, Anaplastic thyroid cancer
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