Metastatic Mediastinal Lymph Node from an Unidentified Primary Papillary Thyroid Carcinoma Diagnosed by Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration

Anson Chow; Masahide Oki; Hideo Saka; Suzuko Moritani; Noriyasu Usami

doi:10.2169/internalmedicine.48.2212

CASE REPORTS

Metastatic Mediastinal Lymph Node from an Unidentified Primary Papillary Thyroid Carcinoma Diagnosed by Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration

Anson Chow, Masahide Oki, Hideo Saka, Suzuko Moritani, Noriyasu Usami

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Keywords: endobronchial ultrasound, transbronchial needle aspiration, mediastinal lymph node, metastasis, thyroid carcinoma

JOURNAL OPEN ACCESS

2009 Volume 48 Issue 15 Pages 1293-1296

DOI https://doi.org/10.2169/internalmedicine.48.2212

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Abstract

Real-time endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) with a dedicated EBUS bronchoscope has been reported as a minimally invasive and accurate method for sampling specimens from mediastinal and hilar lesions. Using this method, not only cytologic but also histologic specimens, which provide valuable information for a definitive diagnosis, can often be obtained. We report a case of an enlarged metastatic mediastinal lymph node from an unidentified primary papillary thyroid carcinoma that was accurately diagnosed by histological and immunohistochemical examination of tissue obtained by EBUS-TBNA.

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