effect of size of the needle on the rate of pneumothorax after ct guided transthoracic needle aspiration biopsy of lung masses

Purpose of Study: To analyze the rate of Pneumothorax after CT guided TNAB of lung masses, using multiple needle sizes

Patients and Method: Seventy patients underwent CT guided FNA of the chest masses

Results: Out of seventy, 18 patients i.e.; 26 % developed Pneumothorax. With 18G needle 24 patients underwent FNA and seven of them i.e: 25% developed Pneumothorax. With 20G needle, 26% developed pneumothorax and with the 22G needle 25% developed Pneumothorax

Conclusion: The study shows that the rate of Pneumothorax after CT guided TNAB of Lung Masses remains almost the same regardless of the size of the needle