The TBNA needle should be inserted to its fullest extent into the airway wall in order to improve diagnostic yield.
Reproduced with permission from Minai, OA, Dasgupta, A, Mehta, AC. Transbronchial needle aspiration of central and peripheral lesions. In: Bolliger, CT, Mathur, PN eds. Progress in Respiratory Research- Interventional Bronchoscopy. Karger, Basel, Switzerland, 1999.
