Fig. 12.

Esophagotracheal fistula in a 42-year-old woman with blunt trauma.

A. Mediastinal window of unenhanced (7-mm collimation) CT scan obtained at the level of the distal trachea shows a fistulous tract (arrows) between the trachea and esophagus. The superior mediastinum is widened, and there is air and soft tissue attenuation (open arrows). Also note the presence of extensive subcutaneous emphysema in the anterior chest wall.

B. Three-dimensional CT image using the shaded-surface display technique indicates that at the distal trachea, a fistulous tract (arrows) is present.