Percutaneous fetal sclerotherapy for congenital cystic adenomatoid malformation of the lung.

Objectives: Congenital cystic adenomatoid malformation (CCAM) is a rare lesion of the developing fetal lung consisting of increased cell proliferation in the bronchial structures with lack of differentiation of the alveoli. Pregnancies may be at an increased risk for perinatal loss with type III CCAM. The purpose of this paper is to present our experience with the management of complicated types II and III CCAM with a novel technique: percutaneous ultrasound-guided fetal sclerotherapy (FST).