Chylopericardium in a child with impaired venous access following small bowel transplantation.

A 10-yr-old child with impaired venous access (bilateral occlusion of internal jugular veins, subclavian veins, and inominate veins) underwent an isolated small bowel transplant. He presented with lethargy, shortness of breath 13 months into his follow-up and was diagnosed to have chylopericardium. MR venography and lymphangiography could not demonstrate the site of lymphatic leak. His chyloperciardium was treated with pericardiocentesis and MCT diet. The most likely cause for the chylopericardium was venous occlusion of the subclavian veins with backpressure resulting in a lymphatic leak. A brief review of literature along with treatment options is discussed.