Fig. 1.

Pneumothorax after percutaneous needle biopsy of a right lung lesion. (a) A small pneumothorax was identified after the biopsy (arrows), just before the withdrawal of the guiding needle. (b) Failed attempt of suction of the air through the guiding needle. Note the subcutaneous emphysema (open arrow). (c) In the recovery room, the patient complained of shortness of breath and demonstrated oxygen desaturation. A 6F pigtail catheter was therefore placed in the right pleural space. This chest radiograph demonstrates the pigtail catheter (open arrow), the small pneumothorax (white arrows), and the subcutaneous emphysema overlying the right chest wall (black arrow). (d) Chest radiograph obtained 48 hours after chest tube placement showing resolution of the pneumothorax and re-expansion of the right lung. The chest tube was subsequently removed.