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KMID : 1202020140070010088
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Journal of Korean Thyroid Association
2014 Volume.7 No. 1 p.88 ~ p.91
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Carcinoma Showing Thymus-like Differentiation (CASTLE) with Non-Recurrent Laryngeal Nerve: A Case Report
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Choi Hyo-Geun
Kim Chul-Sik
Min Soo-Kee
Park Bum-Jung
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Abstract
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Carcinoma showing thymus-like element (CASTLE) is a very rare malignant neoplasm in the lower portion of the thyroid gland or soft tissue of the neck. Recurrent laryngeal nerve (RLN) is the most frequent site of CASTLE. Non-RLN is also a rare anomaly. Both CASTLE and non-RLN are risk factors for vocal cord paralysis. In this report, the authors describe a 73-year-old patients diagnosed with CASTLE and non-RLN. During total thyroidectomy, one RLN was sacrificed inevitably because of tumor invasion, while the other non-RLN was successfully saved, which was expected based on preoperative computed tomography (CT). If the diagnosis is uncertain, CT should be checked to prevent unexpected risks.
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KEYWORD
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Carcinoma, Carcinoma showing thymus-like element (CASTLE), Thyroid, Thymus, Laryngeal nerve
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