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Int J Thyroidol. 2015 Nov;8(2):235-239. English. Case Report.
Noh WJ , Nam SJ , Oak CH , Lee KD .
Department of Otorhinolaryngology-Head and Neck Surgery, Kosin University Gospel Hospital, Busan, Korea.
Department of Internal Medicine, Kosin University Gospel Hospital, Busan, Korea.

A 61-year-old woman who underwent total thyroidectomy for papillary thyroid carcinoma (PTC) five years previously referred for a cervical retrotracheal mass. The mass had intense fluorodeoxyglucose (FDG) uptake on positron emission tomography-computed tomography (PET-CT), and was thus thought to be malignant. Transcutaneous ultrasonography with fine needle aspiration (FNA) was not feasible, so we tried endobronchial ultrasonography (EBUS) with transbronchial needle aspiration (TBNA) to obtain a cytology specimen. After surgery, the mass was confirmed to be a metastatic lymph node from the previous PTC, confirming the TBNA results. Although the utility of EBUS-TBNA for evaluating mediastinal metastasis has been reported in a number of studies, few reports have addressed its utility in the cervical region. Here we report this unusual case of metastatic lymph node of PTC that recurred in the cervical retrotracheal area. It was found to exhibit esophageal muscular invasion, and was accurately diagnosed on EBUS-TBNA.

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