Figure 2

Axial computed tomography of patient’s blunt chest trauma. (A) Axial computed tomography shows a low-percentage pneumothorax and a thin-walled air cavity on the anterior segment of the right lower lobe in close contact with the interlobar fissure. (B) Axial computed tomography shows an extensive contusion in the posterior and lateral segments of the right lower lobe, and the presence of air is demonstrated.