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J Korean Thyroid Assoc. 2014 May;7(1):88-91. English. Case Report. https://doi.org/10.11106/jkta.2014.7.1.88
Choi HG , Kim CS , Min SK , Park B .
Department of Otorhinolaryngology-Head & Neck Surgery, Hallym University Sacred Heart Hospital, Anyang, Korea. pbj426@hallym.ac.kr
Department of Endocrinology, Hallym University Sacred Heart Hospital, Anyang, Korea.
Department of Pathology, Hallym University Sacred Heart Hospital, Anyang, Korea.
Abstract

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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