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Sun A Kim  (Kim SA) 1 Article
A Case of Carcinoma Showing Thymus-Like Differentiation (CASTLE) in the Thyroid.
Eun Hee Kim, Ji Yun Jeong, Eui Young Kim, Sang Ah Lee, Kyung Min Kim, Ji Hye Yim, Won Gu Kim, Tae Yong Kim, Sun A Kim, Gyungyup Gong, Young Kee Shong, Won Bae Kim
J Korean Endocr Soc. 2008;23(4):272-276.   Published online August 1, 2008
DOI: https://doi.org/10.3803/jkes.2008.23.4.272
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AbstractAbstract PDF
Carcinoma Showing Thymus-Like Differentiation (CASTLE) is a very rare malignant neoplasm of the thyroid, and this resembles lymphoepithelioma or squamous cell carcinoma of the thymus. It originates from ectopic thymic tissue or remnants of the branchial pouches. We recently experienced a case of CASTLE in the thyroid gland of a 61-year-old woman. She presented with an asymptomatic mass in the right thyroid gland and she was diagnosed with 'poorly differentiated carcinoma' of the thyroid by fine needle aspiration cytology (FNAC). Total thyroidectomy was performed for both diagnostic and therapeutic purposes. Histologic examination of the resected tumor showed that the tumor was lobulated with expanding fibrous bands, and it was infiltrated by lymphocytes and plasma cells. The tumor cells had oval, large vesicular nuclei and prominent nucleoli, and the immunohistochemical staining was positive for CD5 and bcl-2, so the patient was diagnosed with thyroid CASTLE. We report here on a case of CASTLE in the thyroid gland treated by surgery and external neck radiation therapy.

Citations

Citations to this article as recorded by  
  • Intrathyroidal thymic carcinoma exhibiting neuroendocrine differentiation: Case report with cytomorphology, immunocytochemistry, and review of the literature focusing on cytology
    Wen‐hao Ren, Kun Dong, Xiao‐zheng Huang, Yan‐li Zhu
    Diagnostic Cytopathology.2019; 47(11): 1197.     CrossRef
  • Cytologic Findings of Thyroid Carcinoma Showing Thymus-like Differentiation: A Case Report
    Sunhee Chang, Mee Joo, Hanseong Kim
    Korean Journal of Pathology.2012; 46(3): 302.     CrossRef
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