Fig. 6
From: Esophageal emergencies: another important cause of acute chest pain
Tracheoesophageal fistula. Ninety-one-year-old female with long term intubation with subcutaneous crepitus. a Sagittal CT image shows a traumatic anterior tracheal wall defect (long black arrow) caused by an overinflated endotracheal tube balloon (dotted circle) resulting in a tracheocutaneous fistula and severe anterior chest wall subcutaneous emphysema (asterisks). Small pneumomediastinum (short black arrow) is seen. b Axial CT image obtained 3 weeks later shows a new tracheoesophageal fistula in the region of the previous overinflated endotracheal tube balloon (long black arrow), and a persistent tracheocutaneous fistula (dashed black arrow). Tracheostomy tube (short black arrow). Enteric tube (arrowhead)