• M Riquet and A Badia.
• Service de Chirurgie Thoracique, Hôpital Européen Georges-Pompidou, 20-40, rue Leblanc, 75015 Paris. marc.riquet@hop.egp.ap-hop-paris.fr
• Rev Pneumol Clin. 2004 Apr 1;60(2):104-8.

AbstractChyle is lymph fluid of intestinal origin containing fat digestion products. Chylothorax is produced by leaks from the thoracic duct or from one of its collaterals subsequent to valve incompetence. These leaks may be due to trauma (post-surgical chylothorax, the most frequent) or to spontaneous rupture of a lymph vessel distended by chyle reflux, the thoracic duct itself being pathological. When the thoracic duct is interrupted (obstruction, agenesis), chylothorax may occur from leakage due to reflux within substitution collateral pathways diverting the flow of chyle into the venoux confluents of the neck. Medical treatment is always attempted first: evacuation of chylothorax by drainage and fat-free diet or parenteral nutrition. Recently, treatment with octreotide has been found to be beneficial. Surgery consists in thoracic duct ligation or suture of leaking collaterals. In difficult cases, when the chyle leakage cannot be identified, pleurodesis is the only option.

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