Background The endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a method of endoscopic diagnosis for study of mediastinal involvement. Fine needle capillarity sampling has been applied in other organs and not for transbronchial sampling. We present our results using capillarity sampling techinque at our institution. Methods We included all patients undergoing EBUS exploration between January 1 to August 31 of 2011 in the Pulmonology Department at Clinica Universidad de Navarra in