Endobronchial ultrasound convex‐probe transbronchial needle aspiration as the first diagnostic test in patients with pulmonary masses and associated hilar or mediastinal nodes
Background: In the diagnosis of patients with a lung mass and hilar or mediastinal lymph nodes (N1or N2) it may be that patients are unnecessarily having biopsies of the primary lung cancer when sampling of the nodes would give both a tissue diagnosis and staging. By comparing node station and size in patients having just one procedure (endobronchial ultrasound transbronchial needle aspiration [EBUS TBNA]) with those having extra procedures on the primary mass before EBUS TBNA, similarity of nodes in the two groups might suggest that the extra procedures were unnecessary.
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