A case of renal cell carcinoma with mediastinal lymph node metastasis diagnosed by EBUS-TBNA

Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a new method of sampling mediastinal lymph nodes to aid in diagnosing lymphadenopathy and in staging metastatic cancers. This paper describes a case of renal cell carcinoma with mediastinal and hilar lymph nodes metastasis that was diagnosed using EBUS-TBNA. A 17-year-old woman who had mediastinal lymphadenopathy and a right renal mass underwent imaging studies. The results of a first EBUS-TBNA suggested malignancy, but the type of tumor and exact site of the primary tumor were uncertain. Therefore, we repeated EBUS-TBNA with a lower pressure on the vacuum syringe. We successfully diagnosed the mediastinal lymph node metastasis from renal cell carcinoma.