Galetin T, Defosse J, Schieren M, et al. - The accuracy of thoracic ultrasound was investigated for pneumothorax evaluation after lung resecting surgery in unselected patients. Researchers recruited a sum of 123 consecutive patients with lung resecting surgery who received a standardized thoracic ultrasound the same day and in addition to routine chest x-rays in erect position after removal of the chest tube. The evidence showed that in unselected patients, postoperative thoracic ultrasound has a low overall sensitivity to detect a residual pneumothorax; nevertheless, its sensitivity and negative predictive values regarding clinically relevant pneumothorax are high. The distinct sonographic methodology and patient selection are responsible for test quality. It was noted that in postsurgical and medical patients, anatomic differences may be responsible for the contradictory results of previous trials. A larger population size study is needed to confirm the accuracy of relevant pneumothoraces and distinguish appropriate selection criteria.