Figure 4. 1-month-old girl with oesophageal stricture following oesophageal atresia surgery. A water soluble contrast oesophagogram obtained at the end of the second session of balloon dilatation (8 mm diameter, 5.5 cm length) shows a leakage of contrast material (arrowheads) in the mediastinum at the level of the oesophageal stricture (arrow).