Prenatal Sonography Finding of Fetal Lung Mass at 20 Weeks Gestation

Abstract

Congenital cystic adenomatoid malformation is a pulmonary developmental anomaly arising from an overgrowth of the terminal respiratory bronchioles. In the vast majority of cases, this mass is almost always unilateral and involves a single lobe of the lung. This anomaly has a slightly higher incidence in male than in female fetuses. Accurate prenatal sonographic diagnosis of a fetal lung mass is paramount to establishing an appropriate surgical and obstetrical management plan as well as ensuring the patient’s choice of therapeutic options.