Lim WH, et al. - In this study, researchers assess the time-dependent incidence, risk factors and clinical significance of percutaneous lung biopsy (PLB)-related pneumothorax. Based on these outcomes, PLB-related pneumothorax occurred in 27.3 %, of which 25.1 % developed amid follow-ups. They observed that the smaller target size, emphysema, deeply-located lesions were significant risk factors of PLB-related pneumothorax. Emphysema and older age were associated with drainage catheter insertion and prolonged catheter placement, respectively.