Massive fetal chylothorax successfully treated with postnatal talc pleurodesis: A case report and review of the literature

•Congenital chylothoraces have an associated mortality of 22–65%.•Chemical pleurodesis is a safe and effective treatment for congenital chylothoraces.•In neonatal patients, there is no recommended agent for use in chemical pleurodesis.•Talc pleurodesis was safe and effective in treatment of a congenital chylothorax.

Despite the rapid advances in fetal medicine and pediatric surgery, congenital chylothoraces have an associated mortality of 22–65% and an increased morbidity resulting from pulmonary hypoplasia, severe infections secondary to immune globulin deficiencies, protein malnutrition, and coagulopathy. While the mainstay of therapy is medical management, large volume chylothoraces often require surgical management. In both the prenatal and postnatal periods, the recommended management of congenital chylothoraces is still controversial. We present a case of a prenatally diagnosed large chylothorax associated with a cervical lymphatic malformation. In our patient, the chylothorax persisted despite optimal postnatal medical management with drainage by tube thoracostomy, TPN, and octreotide. Adjuvant therapies included sirolimus and sclerotherapy directed toward the treatment of the macrocystic lymphatic malformation. We report the first case of a persistent congenital chylothorax associated with a lymphatic malformation successfully treated with thoracoscopic talc pleurodesis and sclerotherapy.