Figure 7b. Laceration of the thoracic duct in a 59-year-old woman with chylothorax after esophagectomy. (a) Lymphogram shows extravasation of contrast material from the thoracic duct with accumulation in the pleural space (arrow). (b) Chest CT scan obtained after lymphography shows extensive leakage from the thoracic duct at the T7-8 level (arrowhead) and accumulation of contrast material in the posterior right pleural space.