Optimization of tracheoesophageal fistula model established with T-shaped magnet system based on magnetic compression technique

Figure 4 Gross tracheoesophageal fistula specimens from the control group. A and B: At 6-9 d after surgery, the magnets left the neck and entered the stomach; C: Bronchoscopy showing a fistula located in the posterior wall of the trachea; D: Gastroscopy showing a fistula located in the anterior wall of the esophagus; E: Gross specimen of tracheoesophageal fistula; F: Gross specimen showing the fistula in the trachea; G: Gross specimen showing the fistula in the esophagus.