Related Experiment Video
Updated: Jun 5, 2026

Substernal Thyroid Biopsy Using Endobronchial Ultrasound-guided Transbronchial Needle Aspiration
Published on: November 10, 2014
[Application of transbronchial needle aspiration in the bronchial submucosa]
1Wangkai Tuberculosis Hospital, Zaozhuang, Shandong 277500,P.R.China.
Background:
To explore the applicable value of transbronchial needle aspiration (TBNA) in the bronchial submucosa.
Methods:
TBNA biopsy was performed in 76 cases of pulmonary diseases, which had no endoscopically visible pathologic change. The results of TBNA were compared with that of brushing for cytological examination.
Results:
The correct diagnosis of the pulmonary diseases was 85.5% (65/76) for TBNA and 55.3%(42/76) for brushing cytology, and the correct diagnosis of lung cancer was 78.0%(39/50) for TBNA, 38.0% (19/50) for brushing cytology. Slight bleeding at the penestrated site was observed in 52 patients and there were no other severe complications.
Conclusions:
TBNA is a safe, simple and effective method in clinical application and could be used widely.
Related Concept Videos
Endoscopic Studies I: Bronchoscopy and Thoracoscopy
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due to...
The Bronchial Tree
The trachea, commonly known as the windpipe, is a tube that connects the larynx (voice box) to the bronchi. At a point called the carina, it bifurcates into two primary bronchi. The right primary bronchus is wider, shorter, and more vertical than the left primary...
