“…However, 10 (37%) patients who had pneumothorax in more than 20% of lung volume were treated by inserting a pigtail catheter. In cases where pneumothorax develops during the procedure, manual aspiration can be done by inserting a different needle through a needle guide or into the pleural space (14). Also, development of pneumothorax can be avoided by the "patching technique", where the air leakage is reduced by closing the biopsy tract with 2-3 mL injections of patient's own blood or fibrin tissue sealant when withdrawing the needle (12,14).…”