Fig. 6
From: Pneumoperitoneum caused by tracheal rupture due to tracheotomy: a case report

Chest imaging indicating discontinuity of the tracheal membranous wall. (A) Localized posterior bulging of the tracheal membrane. (B) Sagittal view showing sac-like posterior bulging of the tracheal membrane at the T3 vertebral level. (C-D) Reconstructed images showing healed tracheal rupture with posterior bulging of the membranous part