Interval placement of endotracheal tube terminating 3 cm from the carina. Large right tension pneumothorax and scattered mediastinal lucencies are seen. The cardiomediastinal silhouette is shifted into the left hemithorax. The pulmonary vasculature is obscured. Complete collapse of right lung. Diffuse patchy airspace opacities in the left hemithorax. No pleural, osseous or soft tissue abnormalities.