Chylothorax due to injury to the thoracic duct and lymphatic channels during left internal thoracic artery harvest is well described. However, high volume leakage of chyle due to disruption of aberrant thymic collateral lymphatic channel in the anterior mediastinum has not been described previously. We describe such a case which was managed by early surgical exploration, ligation of the aberrant duct, and insertion of a pleuro-peritoneal shunt.
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