Congenital lung abnormalities: a pictorial review of imaging findings

Congenital lung malformations (CLM) comprise a broad spectrum of maldevelopment that spans a continuum of maldevelopment involving parenchyma, bronchi, and vasculature. They may present as respiratory symptoms at birth and can be the source of morbidity and mortality. Early diagnosis is important for adequate therapy to prevent complications, such as recurrent infections, or to help normal lung development. Prenatal diagnosis of CLM using ultrasound (US) and magnetic resonance imaging (MRI) has increased, but chest radiography and computed tomography (CT) still play important roles in making diagnosis. This article reviews the clinical and radiographic features of various CLM.