Sarcoidosis is an idiopathic disorder characterized by granulomatous inflammation involving various organ systems. The lung and mediastinal lymph nodes are the most commonly involved structures in sarcoidosis. In the presence of intrathoracic lymph nodes, transbronchial needle aspiration (TBNA) is a useful diagnostic modality, which is now guided using endobronchial ultrasound (EBUS). We hypothesize that the 19-gauge EBUS-TBNA needle will have a higher yield as compared to the conventional 22-gauge EBUS-TBNA needle in intrathoracic lymphadenopathy due to sarcoidosis. In this study, we plan to evaluate the yield and safety of the 19-gauge needle vs. the conventional 22-gauge EBUS-TBNA needle in patients with sarcoidosis.
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Diagnostic yield of EBUS-TBNA samples
Timeframe: 6 months