Isolated tracheo-oesophageal fistula

(a) Reflux of oesophageal contents into the airway. (b) Passage of air from trachea to oesophagus through the fistula.

Gaseous distension of the bowel on plain films.

Tube injection oesophagogram demonstrating the tracheo-oesophageal fistula at the level of the thoracic inlet.

Contrast in the airway from aspiration.

Bronchoscopic view of an obscure tracheo-oesophageal fistula (H-TOF). The TOF is just visible on the posterior wall of the trachea as a slit-like opening.

A large tracheo-oesophageal fistula is totally visible on the posterior wall of the trachea.