Comparison of the yield of 19-G eXcelon core needle to a 21-G EBUS needle during endobronchial ultrasound guided transbronchial needle aspiration of mediastinal lymph nodes for the detection of granulomas in cases of suspected sarcoidosis

摘要

Granulomatous diseases are thought to be the most common cause of mediastinal adenopathy (1). Endobronchial ultrasound aided bronchoscopic transbronchial needle aspiration (EBUS-TBNA) provides us with a mechanism to perform lymph node biopsies under real time ultrasound guidance (1).