Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
Michael P. D'Alessandro, M.D.
Peer Review Status: Internally Peer Reviewed
Etiology/Pathophysiology:
Chylothorax is the accumulation of lymphatic fluid in the pleural
space. Abruptly elevated venous pressure during delivery can lead to
thoracic duct rupture which leads to intrapleural accumulation of
lymph fluid. Initially the fluid is serous, but turns chylous after
milk feedings. This is the most frequent cause of a large pleural
effusion in newborn. It is rarely bilateral, and is rarely associated
with generalized lymphangiomatosis. It is diagnosed and usually
managed successfully via thoracenteses.
Pathology:
Not applicable
Imaging Findings:
Usually unilateral and usually on right side (60%).
It is difficult to find the exact site of
lymph extravasation with contrast studies.
DDX:
References:
See References Chapter.
Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
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