High Incidence of vascular complication after comuted tomography guided lung biopsy : what's the matter, the patient or the technique?

We read with interest the article of Anzidei et al. [1] on a predictive score of complications after lung computed tomography (CT)-guided biopsy. We think there is a percentage of complications, especially pneumothorax, which are impossible to avoid, but it would be useful to predict in which cases they occur with high frequency.